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Recent research progress of all-polymer solar cells based on PSMA-type polymer acceptors

CHEM (2023)

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Article Chemistry, Physical

Benzotriazole-Based Polymer Acceptor for High-Efficiency All-Polymer Solar Cells with High Photocurrent and Low Voltage Loss

Xiaoming Li et al.

Summary: Researchers have successfully expanded the light absorption range of all-polymer solar cells by introducing benzotriazole into the polymer acceptors. The resulting polymer acceptors exhibit higher open-circuit voltage and lower voltage loss, leading to a high efficiency of 16.58% for the ternary all-PSCs.

ADVANCED ENERGY MATERIALS (2023)

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Article Chemistry, Physical

18.2%-efficient ternary all-polymer organic solar cells with improved stability enabled by a chlorinated guest polymer acceptor

Rui Sun et al.

Summary: While polymer/polymer blend systems still have lower power conversion efficiencies compared to small-molecule-acceptor-based systems, the use of a ternary blending strategy holds promise in achieving a desired nanoscale blend morphology to bridge the efficiency-stability gap in all-polymer solar cells. In this study, a narrow-band-gap chlorinated polymer acceptor (PY-2Cl) was incorporated into the PM6:PY-1S1Se host blend, resulting in extended absorption spectra, improved molecular packing, solidified blend microstructure, and reduced non-radiative recombination. The resulting ternary blend achieved a PCE of 18.2% (certified value 17.8%), the highest reported for all-PSCs. Furthermore, the ternary blend demonstrated lower Urbach energy and better operational stability compared to corresponding binary systems. This work paves the way for enhancing the development of high-performance all-polymer systems through molecular design and ternary strategies.

JOULE (2023)

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Article Chemistry, Multidisciplinary

Unveiling the Morphological and Physical Mechanism of Burn-in Loss Alleviation by Ternary Matrix Toward Stable and Efficient All-Polymer Solar Cells

Ruijie Ma et al.

Summary: All-polymer solar cells (All-PSCs) are considered the most promising candidate in achieving both efficient and stable organic photovoltaic devices. This study builds a ternary matrix with optimized morphology, improved film ductility, boosted efficiency, and better operational stability than its parental binary counterparts.

ADVANCED MATERIALS (2023)

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Article Chemistry, Multidisciplinary

Regulation of Polymer Configurations Enables Green Solvent-Processed Large-Area Binary All-Polymer Solar Cells With Breakthrough Performance and High Efficiency Stretchability Factor

Jiabin Liu et al.

Summary: In this study, two types of terpolymer acceptors were developed from the perspective of polymer configurations, achieving distinct photovoltaic performance and mechanical flexibility. The toluene-processed large-area binary device achieved a record efficiency. Furthermore, a new parameter called the efficiency stretchability factor (ESF) was proposed to comprehensively evaluate the overall device performance.

ADVANCED MATERIALS (2023)

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Article Chemistry, Multidisciplinary

High-Efficiency and Mechanically Robust All-Polymer Organic Photovoltaic Cells Enabled by Optimized Fibril Network Morphology

Lijiao Ma et al.

Summary: The researchers have successfully achieved high efficiency and mechanical reliability in all-polymer organic photovoltaic (OPV) cells by introducing a polymer donor, PBDB-TF, with a high molecular weight. By adding the high molecular weight PBDB-TF as a third component into the PBQx-TF:PY-IT blend, they optimized the heterojunction morphology, enhancing charge transport efficiency and mechanical stress dissipation. As a result, the all-polymer OPV cells based on the ternary blend film showed a maximum power conversion efficiency (PCE) of 18.2% with a fill factor of 0.796. The flexible OPV cell also achieved a decent PCE of 16.5% with high mechanical stability. These findings provide a promising strategy for improving the mechanical properties and boosting the photovoltaic performance of all-polymer OPV cells.

ADVANCED MATERIALS (2023)

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Article Chemistry, Multidisciplinary

Ternary All-Polymer Solar Cells with Efficiency up to 18.14% Employing a Two-Step Sequential Deposition

Xinrong Yang et al.

Summary: By synergistically combining the ternary blend strategy and the layer-by-layer procedure, the researchers proposed a solution to improve the efficiency of all-polymer solar cells (all-PSCs). They achieved this by improving the vertical phase distribution and molecular ordering of the all-PSCs, resulting in a superior bulk microstructure. This strategy led to a record-high efficiency of 18.14% for all-PSCs.

ADVANCED MATERIALS (2023)

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Article Chemistry, Multidisciplinary

Improved Molecular Ordering in a Ternary Blend Enables All-Polymer Solar Cells over 18% Efficiency

Yunhao Cai et al.

Summary: Although all-polymer solar cells (all-PSCs) have great commercial potential, their power conversion efficiencies (PCEs) lag behind small molecule acceptor-based counterparts. Achieving optimized morphology and high molecular ordering in all-polymer blends is challenging due to competition between the crystallinity of the polymer donor and acceptor during film formation. In this study, a ternary strategy is employed to modulate the morphology and molecular crystallinity of an all-polymer blend, resulting in improved PCEs and performance.

ADVANCED MATERIALS (2023)

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Article Materials Science, Multidisciplinary

New Type of Polymerized Small A-D-A Acceptors Constructed by Conjugation Extension in the Branched Direction

Kangqiao Ma et al.

Summary: The current polymerization process of high-performance polymerized small molecular acceptors (PSMAs) through terminal groups of small molecular acceptors (SMAs) damages the preferred stackings of terminal groups and weakens the photoelectric performance of all-polymer solar cells (all-PSCs). To improve intermolecular stackings, a new pathway is explored by extending molecular conjugation in branched directions, resulting in two PSMAs of SP-T and SP-TT. The SP-T-based all-PSC exhibits a significantly improved efficiency of 13.54% compared to the SP-TT-based one with an efficiency of 9.76%, due to more compact/ordered stackings and superior morphology.

ACS MATERIALS LETTERS (2023)

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Review Chemistry, Multidisciplinary

Non-Radiative Recombination Energy Losses in Non-Fullerene Organic Solar Cells

Dan He et al.

Summary: This review summarizes the recent studies and achievements on the non-radiative recombination energy loss (Delta E-3) in non-fullerene acceptor-based organic solar cells (OSCs). By exploring material design, morphology manipulation, ternary strategy, mechanism, and theoretical study, it is hoped to further reduce energy loss and enhance the power conversion efficiency.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Importance of High-Electron Mobility in Polymer Acceptors for Efficient All-Polymer Solar Cells: Combined Engineering of Backbone Building Unit and Regioregularity

Soodeok Seo et al.

Summary: By designing a new series of polymerized small molecule acceptor-based polymer acceptors, the authors controlled the donating moiety and backbone regioregularity to enhance electron mobility and power conversion efficiencies. The effects of different donating units and regioisomers on PCEs were found to be opposite, with the highest efficiency achieved by a specific blend with the highest electron mobility. The study highlights the importance of simultaneous engineering of the backbone building unit and regioregularity for high-mobility P-A and highly efficient all-PSCs.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Polymerized Small Molecular Acceptor with Branched Side Chains for All Polymer Solar Cells with Efficiency over 16.7%

Yun Li et al.

Summary: This study successfully achieved efficient all-polymer solar cells by designing and synthesizing a series of polymer acceptors. Through the investigation of the structure-property relationship of polymer acceptors, new insights into polymer acceptors were provided, and a feasible approach to develop efficient conjugated polymer acceptors was paved.

ADVANCED MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Realizing 19.05% Efficiency Polymer Solar Cells by Progressively Improving Charge Extraction and Suppressing Charge Recombination

Kaien Chong et al.

Summary: This work demonstrates highly efficient polymer solar cells by improving charge extraction and suppressing charge recombination through side-chain engineering, adopting ternary blends, and introducing volatilizable solid additives. The optimized molecular structure and blend morphology lead to improved fill factor and power conversion efficiency.

ADVANCED MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Meniscus-Assisted Coating with Optimized Active-Layer Morphology toward Highly Efficient All-Polymer Solar Cells

Yuchen Yue et al.

Summary: A facile and effective MAC strategy is reported for preparing high-quality blend films, which leads to all-PSCs with excellent optoelectronic properties and better stability. By controlling the meniscus advance speed, high-efficiency all-PSC devices can be fabricated.

ADVANCED MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Polymer Acceptors with Flexible Spacers Afford Efficient and Mechanically Robust All-Polymer Solar Cells

Zewdneh Genene et al.

Summary: The introduction of a flexible conjugation-break spacer (FCBS) into polymer acceptors (P(A)s) enables the achievement of highly efficient and mechanically robust all-polymer solar cells (all-PSCs), improving both photovoltaic performance and mechanical stretchability.

ADVANCED MATERIALS (2022)

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Review Chemistry, Multidisciplinary

Organoboron molecules and polymers for organic solar cell applications

Junhui Miao et al.

Summary: Organic solar cells (OSCs) with organoboron materials show great potential in enhancing device performance, with the ability to tune optoelectronic properties and increase power conversion efficiency (PCE). Although PCEs of 16% and 14% have been achieved with organoboron polymer electron donors and acceptors, there are still opportunities and challenges in further improving OSC device performance using organoboron photovoltaic materials.

CHEMICAL SOCIETY REVIEWS (2022)

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Article Chemistry, Multidisciplinary

16.3% Efficiency binary all-polymer solar cells enabled by a novel polymer acceptor with an asymmetrical selenophene-fused backbone

Huiting Fu et al.

Summary: A novel polymer acceptor, PYT-1S1Se, designed with an asymmetrical selenophene-fused framework, has been shown to optimize optical absorption and electronic properties in all-polymer solar cells. Compared with other analogs, all-PSCs derived from PYT-1S1Se demonstrate improved J(sc) and V-oc metrics, resulting in a record-high power conversion efficiency of 16.3%.

SCIENCE CHINA-CHEMISTRY (2022)

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Review Chemistry, Multidisciplinary

Perylene-diimide derived organic photovoltaic materials

Ming Zhang et al.

Summary: This review systematically summarizes the recent progress on photovoltaic materials based on perylene-diimides (PDIs), including the explanation of design strategies for modification of the parent PDI units towards their application as acceptors and cathode interlayers in devices. Common features in the design of tailor-made PDI-based photovoltaic materials are discussed, along with highlighting the challenges and opportunities in improving device performance in the future.

SCIENCE CHINA-CHEMISTRY (2022)

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Review Chemistry, Multidisciplinary

Recent progress in organic solar cells (Part I material science)

Yahui Liu et al.

Summary: In recent years, organic solar cells (OSCs) have made significant progress with power conversion efficiencies (PCEs) over 18%, showing promising practical applications. Key research focuses in the OSC field include development in material science and interface materials. The article systematically summarizes the recent progress in these areas and discusses current challenges and future developments.

SCIENCE CHINA-CHEMISTRY (2022)

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Article Chemistry, Physical

Synergistic Engineering of Side Chains and Backbone Regioregularity of Polymer Acceptors for High-Performance All-Polymer Solar Cells with 15.1% Efficiency

Cheng Sun et al.

Summary: Tuning the aggregation and crystalline properties of polymers is crucial for achieving optimal blend morphology and high power conversion efficiency in all-polymer solar cells (all-PSCs). Simultaneous engineering of PSMA backbone regioregularity and side-chain structures is important for enhancing electron mobility, optimizing blend morphology, and achieving highly efficient all-PSCs.

ADVANCED ENERGY MATERIALS (2022)

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Article Materials Science, Multidisciplinary

Revealing the microstructure-related light-induced degradation for all-polymer solar cells based on regioisomerized end-capping group acceptors

Jing Guo et al.

Summary: This study investigated the photostability and degradation mechanisms of all-polymer solar cells composed of three isomeric polymer acceptors, revealing different degradation mechanisms and morphological evolution paths for different acceptors. The acceptor with moderate crystallinity exhibited better stability, and the correlation between molecular structure and device stability was emphasized.

JOURNAL OF MATERIALS CHEMISTRY C (2022)

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Article Materials Science, Multidisciplinary

Understanding the molecular mechanisms of the differences in the efficiency and stability of all-polymer solar cells

Qiang Wu et al.

Summary: The study introduces PBDB-T and its congeners as new P(D) materials, and PYT as P(A) materials, to investigate the effects of molecular structure and molecular weight on the device performance of all-polymer solar cells. The results demonstrate that proper phase separation and molecular matching can significantly improve device efficiency, while the stability of the active layer depends on a trade-off between molecular miscibility and molecular weight.

JOURNAL OF MATERIALS CHEMISTRY C (2022)

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Article Chemistry, Physical

Near-infrared absorbing polymer acceptors enabled by selenophene-fused core and halogenated end-group for binary all-polymer solar cells with efficiency over 16%

Qunping Fan et al.

Summary: Recent advances in all-polymer solar cells have been hindered by the lack of polymerized small-molecule acceptors with desirable optoelectronic properties, particularly in capturing near-infrared photons. By developing novel near-infrared absorbing PSMAs with halogenated end-groups, researchers have managed to significantly enhance the performance of all-PSCs, achieving impressive power conversion efficiencies and high short-circuit current densities. The introduction of chlorination in the end-group of the acceptors has shown great potential in practical applications of efficient all-PSCs, emphasizing the importance of optimizing optoelectronic properties for enhanced device performance.

NANO ENERGY (2022)

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Article Chemistry, Multidisciplinary

Quasiplanar Heterojunction All-Polymer Solar Cells: A Dual Approach to Stability

Congcong Cao et al.

Summary: The quasiplanar heterojunction (Q-PHJ) structure with a bilayer morphology shows improved efficiency and stability in organic solar cells. By using synthesized polymer donors and acceptors, high-performance Q-PHJ all-polymer solar cells (all-PSCs) with reliable stability have been achieved.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Article Chemistry, Multidisciplinary

A Vinylene-Linker-Based Polymer Acceptor Featuring a Coplanar and Rigid Molecular Conformation Enables High-Performance All-Polymer Solar Cells with Over 17% Efficiency

Han Yu et al.

Summary: This study reports a high-performance polymer acceptor based on vinylene linkers, which exhibit a more coplanar and rigid molecular conformation compared to traditional thiophene-based acceptors. This leads to higher mobility and reduced energetic disorder. Furthermore, the blend based on this polymer acceptor demonstrates high domain purity, resulting in a better fill factor in all-polymer solar cells.

ADVANCED MATERIALS (2022)

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Article Chemistry, Multidisciplinary

16.52% Efficiency All-Polymer Solar Cells with High Tolerance of the Photoactive Layer Thickness

Wenqing Zhang et al.

Summary: In this study, a third polymer donor, PTQ10, was introduced to finely tune the energy-level matching and microscopic morphology of the polymer blend photoactive layer in all-polymer solar cells (all-PSCs). The addition of PTQ10 improved the charge separation and transport efficiency, resulting in a high power conversion efficiency (PCE) of 16.52%. Furthermore, the all-PSCs exhibited a high tolerance of the photoactive layer thickness, achieving high PCEs of 15.27% and 13.91% at thick photoactive layer thicknesses, which are the highest reported for all-PSCs.

ADVANCED MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Single-Junction Organic Solar Cells with 19.17% Efficiency Enabled by Introducing One Asymmetric Guest Acceptor

Rui Sun et al.

Summary: The ternary strategy is an effective approach to achieve high-efficiency OSCs, but the nonradiative voltage loss limits further efficiency improvements. By incorporating an asymmetric guest acceptor BTP-2F2Cl, the OSCs show improved photoluminescence quantum yield, exciton diffusion length, and absorption spectrum, leading to enhanced power conversion efficiency.

ADVANCED MATERIALS (2022)

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Article Engineering, Environmental

Cost-Efficiency balanced polymer acceptors based on lowly fused Dithienopyrrolo[3, 2b]benzothiadiazole for 16.04% efficiency All-Polymer solar cells

Chentong Liao et al.

Summary: Due to their outstanding thermal stability and mechanical properties, All-polymer solar cells (All-PSCs) have attracted increasing attention. However, the prevailing polymer acceptors BTTP-based polymers, have limitations in terms of energy levels and figure of merit (FOM) which restricts the selection of donor polymers. Therefore, the development of low-cost BTP-based polymer acceptors has significant importance.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Engineering, Environmental

Synchronously regulating the alkyl side-chain and regioisomer of polymerized small molecule acceptor enabling highly efficient all-polymer solar cells processed with non-halogenated solvent

Tao Jia et al.

Summary: The power conversion efficiencies of all-polymer solar cells have been significantly improved recently due to the usage of emerging polymerized small molecule acceptors. However, most of the processing methods for these solar cells involve halogenated solvents, which are not suitable for future mass production. In this study, non-halogenated solvent processable PSMAs are designed by integrating side-chain and backbone regioisomer engineering.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Polymer Science

A Near-Infrared Polymer Acceptor Enables over 15% Efficiency for All-Polymer Solar Cells

Tao Wang et al.

Summary: In this study, a fused-aromatic-ring-constructed near-infrared polymer acceptor PYT-Tz was designed and synthesized, and high-performance all-polymer solar cells were achieved by blending PYT-Tz with PBDB-T. Compared with traditional materials, PYT-Tz exhibited stronger absorption, higher electron mobility, and ordered molecular packing, leading to efficient hole injection and reduced non-radiative recombination loss. This research is of great importance for the development of high-performance all-polymer solar cells.

CHINESE JOURNAL OF POLYMER SCIENCE (2022)

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Review Energy & Fuels

Engineering Non-fullerene Acceptors as a Mechanism to ControlFilm Morphology and Energy Loss in Organic Solar Cells

Genene Tessema Mola et al.

Summary: Solution processable thin-film organic solar cells have gained research attention due to their low-cost, flexible, and portable nature. Progress has been made in improving materials design, device architecture, and fabrication processes. The choice of donor and acceptor materials is crucial for the performance of organic solar cells, and the limitations in tuning fullerene molecules pose challenges. Non-fullerene acceptors have emerged as a potential solution, improving film morphology and reducing energy loss.

ENERGY & FUELS (2022)

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Article Polymer Science

Side-Chain Substituents on Benzotriazole-Based Polymer Acceptors Affecting the Performance of All-Polymer Solar Cells

Huiting Fu et al.

Summary: This study investigated the impact of alkyl chain size on the properties and performance of polymerized small-molecule acceptors (PSMAs) in all-polymer solar cells (all-PSCs). It was found that optimizing side-chain substituents on PSMAs, such as the size of alkyl chains, is crucial for improving the device efficiency of all-PSCs. PZT-C1, with better crystallinity and blend morphology, achieved the highest power conversion efficiency of 14.9% when combined with the polymer donor PBDB-T.

MACROMOLECULAR RAPID COMMUNICATIONS (2022)

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Article Polymer Science

Aggregation of Small Molecule and Polymer Acceptors with 2D-Fused Backbones in Organic Solar Cells

Hanjian Lai et al.

Summary: This study investigates the effects of fused 2D-expansion on the optoelectronic properties of molecules in A-DAD-A systems using phenanthrene and acenaphthene. It reveals that the aggregation behaviors of small molecules are different from those of polymer acceptors, and the fused 2D-expansion can effectively adjust the aggregation behaviors to enhance the power conversion efficiency of organic solar cells.

MACROMOLECULES (2022)

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Article Chemistry, Physical

Single-junction organic solar cells with over 19% efficiency enabled by a refined double-fibril network morphology

Lei Zhu et al.

Summary: Morphological control of donor and acceptor domains is crucial for efficient organic photovoltaics, and this study demonstrates a double-fibril network strategy to achieve a high power conversion efficiency of 19.3%.

NATURE MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Over 16% efficiency all-polymer solar cells by sequential deposition

Bangbang Li et al.

Summary: All-polymer solar cells (all-PSCs) have excellent mechanical robustness and performance stability, but their power conversion efficiency (PCE) still lags behind that of organic solar cells (OSCs) based on non-fullerene small molecule acceptors. In this study, highly efficient all-PSCs were achieved via sequential deposition (SD) with donor and acceptor layers coated sequentially to optimize the film microstructure.

SCIENCE CHINA-CHEMISTRY (2022)

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Article Chemistry, Multidisciplinary

Low-cost polymer acceptors with noncovalently fused-ring backbones for efficient all-polymer solar cells

Xiaobin Gu et al.

Summary: Novel polymeric acceptors (PBTzO and PBTzO-2F) were designed and synthesized by copolymerization of noncovalently fused ring acceptors, which were employed in all-polymer solar cells for the first time, resulting in improved power conversion efficiency and reduced cost.

SCIENCE CHINA-CHEMISTRY (2022)

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Review Chemistry, Multidisciplinary

Recent progress in organic solar cells (Part II device engineering)

Yahui Liu et al.

Summary: This review examines the rapid development of organic solar cells and highlights the importance of device engineering in achieving high power conversion efficiency. The challenges, problems, and future developments in this field are also discussed.

SCIENCE CHINA-CHEMISTRY (2022)

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Article Chemistry, Multidisciplinary

Chlorinated polymerized small molecule acceptor enabling ternary all-polymer solar cells with over 16.6% efficiency

Ke Hu et al.

Summary: A new small-molecule acceptor-based polymerized solar cell (PYCl-T) with high efficiency and thermal stability was designed and synthesized using a ternary blending system.

SCIENCE CHINA-CHEMISTRY (2022)

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Article Chemistry, Physical

Emerging Strategies toward Mechanically Robust Organic Photovoltaics: Focus on Active Layer

Cenqi Yan et al.

Summary: The mechanical stability of organic photovoltaics (OPVs) is crucial for their applications in various fields. This article analyzes the working scenarios of flexible OPVs and strategies to improve their mechanical stability. Recent achievements in enhancing the mechanical robustness of active layers are summarized, followed by an outlook on the future of this field.

ADVANCED ENERGY MATERIALS (2022)

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Article Chemistry, Physical

Layer-by-layer processed binary all-polymer solar cells with efficiency over 16% enabled by finely optimized morphology

Yue Zhang et al.

Summary: By using 1-chloronaphthalene as the solvent additive during the deposition of the polymer acceptor in the top layer and applying thermal annealing on the entire active layer, the favorable morphology led to greatly enhanced exciton splitting efficiency, reduced trap density, improved charge transport, and suppressed charge recombination loss, resulting in a high power conversion efficiency and the highest fill factor for all-PSCs based on polymerized small molecule acceptors up to date. This work demonstrates an effective strategy for morphology optimization of layer-by-layer processed all-polymer solar cells.

NANO ENERGY (2022)

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Article Multidisciplinary Sciences

Tailoring polymer acceptors by electron linkers for achieving efficient and stable all-polymer solar cells

Qiang Wu et al.

Summary: This paper demonstrates the importance of electron linker engineering in improving the efficiency and stability of all-polymer solar cells. By designing and synthesizing polymer acceptors with different electron linkers, the intermolecular interactions and charge transport properties of the relative polymer acceptors can be tuned, leading to superior performance and excellent material compatibility.

NATIONAL SCIENCE REVIEW (2022)

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Article Chemistry, Multidisciplinary

Developing Y-Branched Polymer Acceptor with 3D Architecture to Reconcile Between Crystallinity and Miscibility Yielding >15% Efficient All-Polymer Solar Cells

Jingjing Ji et al.

Summary: A new Y-shape polymer acceptor, PYTT, is developed for all-polymer solar cells. It exhibits better organic solubility and improved photovoltaic performance due to its highly-branched 3D architecture. The interpenetrating nano-fibrillar structures formed in PYTT blend film promote exciton dissociation and charge transport, resulting in a higher power conversion efficiency of 15.60%.

ADVANCED SCIENCE (2022)

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Article Multidisciplinary Sciences

Heteroheptacene-based acceptors with thieno[3,2-b]pyrrole yield high-performance polymer solar cells

Zhenghui Luo et al.

Summary: Rationally utilizing and developing synthetic units is crucial for designing high-performance non-fullerene small-molecule acceptors. In this study, four acceptors were developed based on a thieno[3,2-b]pyrrole synthetic unit, showing improved photovoltaic properties and energy utilization compared to the standard acceptor IT-4Cl. The ThPy3-based device achieved the highest PCE and excellent FF, while the ThPy4-based device achieved the lowest energy loss and smallest optical band gap.

NATIONAL SCIENCE REVIEW (2022)

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Article Chemistry, Physical

Desired open-circuit voltage increase enables efficiencies approaching 19% in symmetric-asymmetric molecule ternary organic photovoltaics

Lingling Zhan et al.

Summary: By constructing ternary organic photovoltaics, the open-circuit voltage (V-oc) loss is reduced, leading to a higher voltage without sacrificing the absorbing range. In addition, the ternary blend exhibits enhanced charge transport property and a higher fill factor.

JOULE (2022)

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Article Energy & Fuels

Non-Fused Polymerized Small Molecular Acceptors for Efficient All-Polymer Solar Cells

Baoqi Wu et al.

Summary: The development of polymer acceptors is critical for high-efficiency all-polymer solar cells. In this study, two novel polymer acceptors derived from non-fused small molecules were reported for the first time, offering improved device performance due to more ordered polymer packing resulting in more efficient exciton separation and charge transport. This work demonstrates that polymerizing non-fused small molecular acceptors is an effective strategy for developing polymer acceptors for high-performance all-PSCs.

SOLAR RRL (2022)

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Article Chemistry, Multidisciplinary

A New Polymer Donor Enables Binary All-Polymer Organic Photovoltaic Cells with 18% Efficiency and Excellent Mechanical Robustness

Jingwen Wang et al.

Summary: The development of polymerized small-molecule acceptors has improved the power conversion efficiencies (PCEs) of all-polymer organic photovoltaic (OPV) cells. However, suitable polymer donors for all-polymer OPV cells are still lacking. In this study, a new polymer donor named PQM-Cl is designed and its photovoltaic performance is explored.

ADVANCED MATERIALS (2022)

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Review Chemistry, Multidisciplinary

Material Design and Device Fabrication Strategies for Stretchable Organic Solar Cells

Jin Su Park et al.

Summary: This article provides a comprehensive overview of fully stretchable organic solar cells (f-SOSCs), which are designed to operate reliably under various forms of mechanical stress. The mechanical requirements and evaluation methods of f-SOSCs are summarized, and key studies and improvements for each layer are discussed. The current challenges and future prospects of f-SOSC research are also explored.

ADVANCED MATERIALS (2022)

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Article Chemistry, Multidisciplinary

A Top-Down Strategy to Engineer ActiveLayer Morphology for Highly Efficient and Stable All-Polymer Solar Cells

Huiting Fu et al.

Summary: By leveraging the layer-by-layer (LBL) deposition technique to engineer the morphology of all-polymer blends, optimal molecular orientation, vertical composition distribution, and efficient charge transport and extraction have been achieved, leading to high-performance all-polymer solar cells (all-PSCs).

ADVANCED MATERIALS (2022)

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Article Engineering, Environmental

Conquering the morphology barrier of ternary all-polymer solar cells by designing random terpolymer for constructing efficient binary all-polymer solar cells

Zhenye Li et al.

Summary: By using the random ternary copolymerization strategy, the morphology barrier of ternary all-polymer solar cells can be overcome, leading to the achievement of a more ideal film morphology and higher photovoltaic conversion efficiency.

CHEMICAL ENGINEERING JOURNAL (2022)

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Review Chemistry, Multidisciplinary

Renewed Prospects for Organic Photovoltaics

Guichuan Zhang et al.

Summary: Organic photovoltaics (OPVs) have undergone three stages of development, including optimizing bulk heterojunctions, improving donor-acceptor match, and developing non-fullerene acceptors (NFAs). NFAs have resulted in higher power conversion efficiencies (PCEs) surpassing 15% due to reduced energy losses and increased quantum efficiencies. The review provides an update on recent progress in OPV technology, including novel NFAs and donors, understanding structure-property relationships, and commercialization challenges.

CHEMICAL REVIEWS (2022)

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Article Energy & Fuels

Suppressed recombination loss in organic photovoltaics adopting a planar-mixed heterojunction architecture

Kui Jiang et al.

Summary: Researchers have discovered that using donor and acceptor materials with intrinsically weaker exciton binding strengths in sequentially processed planar-mixed heterojunction devices can alleviate photocurrent loss caused by triplet states and achieve higher power conversion efficiencies.

NATURE ENERGY (2022)

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Article Energy & Fuels

Organic solar cells using oligomer acceptors for improved stability and efficiency

Youcai Liang et al.

Summary: Oligomer acceptors improve the molecular packing and morphology of organic solar cells, resulting in a 15% efficiency and enhanced stability.

NATURE ENERGY (2022)

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Article Chemistry, Physical

Direct Observation of Increased Free Carrier Generation Owing to Reduced Exciton Binding Energies in Polymerized Small-Molecule Acceptors

Jinyuan Zhang et al.

Summary: In this study, transient mid-IR spectroscopy was used to investigate the direct photo-generation of free charge carriers in different types of organic solar cell materials. It was found that polymerized SMAs have higher free carrier concentration compared to their corresponding SMAs, leading to reduced exciton binding energy and decreased energy losses in high-performance OSCs.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2022)

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Article Polymer Science

High-Performance Polymer Acceptor Synthesized by an Asymmetric Copolymerization Strategy

Jiaqi Du et al.

Summary: In this study, a new synthetic strategy of asymmetric copolymerization is proposed for synthesizing polymer acceptors based on the polymerized small-molecule acceptor (PSMA) strategy. The results show that asymmetric copolymerization is an effective strategy for synthesizing high-performance PSMA, and the PM6:PA1-o-based all-PSC achieves the highest power conversion efficiency (PCE) of 16.0%.

MACROMOLECULES (2022)

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Article Multidisciplinary Sciences

High performance polymerized small molecule acceptor by synergistic optimization on π-bridge linker and side chain

Guangpei Sun et al.

Summary: The modification of small molecule acceptor building block and the pi-bridge linker is an effective strategy to improve the photovoltaic performance of polymer acceptors. In this work, a new polymer acceptor PG-IT2F was synthesized with improved power conversion efficiency in polymer solar cells.

NATURE COMMUNICATIONS (2022)

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Review Chemistry, Physical

Y-Series-Based Polymer Acceptors for High- Performance All-Polymer Solar Cells in Binary and Non

Meenal Kataria et al.

Summary: Recently, all-polymer solar cells have made significant progress in terms of efficiency and performance, achieving a high power conversion efficiency through the use of innovative polymer acceptors.

ACS ENERGY LETTERS (2022)

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Article Energy & Fuels

High-speed sequential deposition of photoactive layers for organic solar cell manufacturing

Rui Sun et al.

Summary: In this study, the authors demonstrate that layer-by-layer deposition can accelerate the manufacturing of organic solar cells while maintaining high efficiency. By optimizing the blend and thickness of the photoactive layers, they were able to achieve high-speed fabrication. This approach has the potential to reduce manufacturing costs and is applicable to other photovoltaic systems and coating techniques.

NATURE ENERGY (2022)

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Article Chemistry, Physical

Constructing a Double-Cable Polymer Acceptor for Efficient All- Polymer Solar Cells with a Non-Radiative Recombination Energy Loss of 0.16 eV

Tao Wang et al.

Summary: This study demonstrates a promising design strategy to synthesize a polymer acceptor PT-YTz with intensified and extended absorption spectrum and enhanced electron mobility. The PM6/PT-YTz all-PSCs showed favorable active layer morphology and high efficiency.

CHEMISTRY OF MATERIALS (2022)

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Article Materials Science, Multidisciplinary

Solid additive engineering enables high-efficiency and eco-friendly all-polymer solar cells

Jiali Song et al.

Summary: The study demonstrates that the incorporation of 2-methoxynaphthalene (2-MN) into PM6:PY-DT blend can effectively manipulate the aggregations of molecules and achieve high efficiency for all-polymer solar cells (all-PSCs). The use of 2-MN as a green and solid additive is a simple and feasible strategy to optimize morphology, promoting eco-friendly fabrication and application of all-PSCs.

MATTER (2022)

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Article Chemistry, Multidisciplinary

Random copolymerization strategy for non-halogenated solvent-processed all-polymer solar cells with a high efficiency of over 17%

Jiabin Zhang et al.

Summary: By adopting a random copolymerization strategy, the donor polymer JD40-BDD20 for non-halogenated solvent-processed all-PSCs shows improved solubility, suitable pre-aggregation and crystallinity, and superior miscibility with the acceptor PJTVT. The incorporation of the BDD unit enables a favorable morphology, leading to enhanced device performance with a PCE reaching 17.21% when using PA-5 as the acceptor.

ENERGY & ENVIRONMENTAL SCIENCE (2022)

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Article Chemistry, Multidisciplinary

Sequentially regular polymer acceptors featuring flexible spacers for high-performance and mechanically robust all-polymer solar cells

Jin-Woo Lee et al.

Summary: This study achieves highly efficient and mechanically robust polymer solar cells by designing a polymerized small-molecule acceptor with regular flexible spacers. The resulting solar cells show high power conversion efficiency and stretchability, and are fabricated using an environmentally friendly solvent process.

ENERGY & ENVIRONMENTAL SCIENCE (2022)

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Article Chemistry, Physical

Mechanically robust all-polymer solar cells enabled by polymerized small molecule acceptors featuring flexible siloxane-spacers

Jin-Woo Lee et al.

Summary: This study develops a new polymerized small-molecule acceptor with a flexible siloxane spacer to enhance the mechanical robustness of all-PSCs. Additionally, the solubility of the acceptor is improved, enabling the fabrication of high-performance all-PSCs using non-halogenated solvent.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

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Article Chemistry, Multidisciplinary

Solid additive tuning of polymer blend morphology enables non-halogenated-solvent all-polymer solar cells with an efficiency of over 17%

Ke Hu et al.

Summary: This study utilizes non-halogenated solvent toluene and volatilizable DTT solid additive to process all-polymer solar cells, achieving eco-friendly and high efficiency. The DTT solid additive fine-tunes the aggregation of polymer donors and acceptors, resulting in active layers with appropriate domain size and high purity, leading to improved performance of the all-polymer solar cells.

ENERGY & ENVIRONMENTAL SCIENCE (2022)

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Article Chemistry, Multidisciplinary

An efficient polymer acceptor via a random polymerization strategy enables all-polymer solar cells with efficiency exceeding 17%

Yun Li et al.

Summary: This study developed a series of polymer acceptors using a random copolymerization strategy, which demonstrated better optical and electronic properties compared to traditional polymer acceptors. The highest efficiency all-polymer solar cell to date was successfully fabricated.

ENERGY & ENVIRONMENTAL SCIENCE (2022)

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Article Chemistry, Multidisciplinary

Design of Non-fused Ring Acceptors toward High-Performance, Stable, and Low-Cost Organic Photovoltaics

Qing Shen et al.

Summary: This article comprehensively summarizes the work on non-fused ring electron acceptors (NFREAs) in terms of molecular design and efficiency optimization, material cost, and stability. By addressing the issues of conformational unicity and effective molecular packing, NFREAs can achieve higher efficiencies. In addition, the simplified synthesis routes of NFREAs greatly reduce the complexity and cost of production. Strategies for improving intrinsic material stability, photostability, and thermal stability are also discussed. NFREAs have the potential to drive the development of organic solar cells (OSCs) towards high performance, stability, and low cost.

ACCOUNTS OF MATERIALS RESEARCH (2022)

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Article Chemistry, Multidisciplinary

Manipulating the D:A interfacial energetics and intermolecular packing for 19.2% efficiency organic photovoltaics

Chengliang He et al.

Summary: Manipulating the donor:acceptor energetics is crucial for achieving balanced charge separation and recombination in organic solar cells (OSCs). In this study, a non-fullerene electron acceptor, BTP-H2, was designed and synthesized to pair with the polymer donor PM6, showing strong intermolecular interaction and near-zero highest occupied molecular orbital (HOMO) offset. The results demonstrated efficient charge separation and optimized energy conversion, leading to high-performance OSCs with a power conversion efficiency (PCE) of 18.5% and a peak photon-to-electron response of approximately 90%.

ENERGY & ENVIRONMENTAL SCIENCE (2022)

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Article Green & Sustainable Science & Technology

Exciton Binding Energy of Non-Fullerene Electron Acceptors

Yufan Zhu et al.

Summary: In recent years, the power conversion efficiency of organic solar cells has significantly improved due to the advantages of non-fullerene acceptors. However, the large exciton binding energy caused by strong Coulombic force still limits the development of high-performance organic solar cells. Therefore, reducing the exciton binding energy is crucial for further enhancing device performance. This perspective discusses the calculation methods for exciton binding energy and its relationship with voltage loss, as well as the effects of different properties of small-molecule acceptors on exciton binding energy. Potential directions for reducing exciton binding energy and the trade-off between exciton binding energy and bandgaps/miscibility are also proposed.

ADVANCED ENERGY AND SUSTAINABILITY RESEARCH (2022)

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Article Chemistry, Multidisciplinary

All-polymer solar cells with over 16% efficiency and enhanced stability enabled by compatible solvent and polymer additives

Ruijie Ma et al.

Summary: In this study, the morphology of the active layer in all-polymer solar cells was fine-tuned using solvent additive and polymer additive, resulting in an efficiency of 16.04%. Altering the shape of crystallites enhanced charge transport, reduced recombination, and suppressed energy loss, leading to improved device efficiency and stability.

AGGREGATE (2022)

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Article Materials Science, Multidisciplinary

Achieving high efficiency and well-kept ductility in ternary all-polymer organic photovoltaic blends thanks to two well miscible donors

Ruijie Ma et al.

Summary: All-polymer solar cells (APSCs) are a promising application-oriented photovoltaic technology that offers operational and mechanical stability. However, their low power conversion efficiency has limited their competitiveness compared to other types of solar cells. In this study, we achieved improved performance of APSCs by enhancing energy transfer, tuning crystallinity, and improving phase separation, leading to faster charge transfer, balanced charge transport, suppressed exciton recombination, and more efficient charge extraction. The study also highlighted the importance of good miscibility between polymer donors in maintaining film morphology and ductility.

MATTER (2022)

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Article Materials Science, Multidisciplinary

Polymerizing small molecular acceptors for efficient all-polymer solar cells

Yuxin Kong et al.

Summary: This article focuses on the importance of controlling the regioregularity of polymerized small molecular acceptors (PSMAs) in all-polymer solar cells (all-PSCs). The integration of regioregular PSMAs improves the absorption, backbone ordering, and blend morphology of the polymer acceptors compared to regiorandom ones. These regioregular PSMAs also enable repeatable synthesis and reproducible device performance, which is essential for scaling-up and commercializing all-PSCs. The article discusses the challenges and prospects of PSMAs as a new platform for advancing all-PSCs.

INFOMAT (2022)

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Review Materials Science, Multidisciplinary

Morphology control in high-efficiency all-polymer solar cells

Kangkang Zhou et al.

Summary: This review discusses high-performance strategies for all-polymer solar cells (All-PSCs), focusing on morphology control. By driving the molecular design of novel polymer acceptors and optimizing morphology, the power conversion efficiency (PCE) of All-PSCs has rapidly developed and exceeded 17%. The crucial role of molecular miscibility in influencing morphological features and performance metrics is emphasized.

INFOMAT (2022)

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Review Chemistry, Multidisciplinary

Polymerized Small-Molecule Acceptors for High-Performance All-Polymer Solar Cells

Zhi-Guo Zhang et al.

Summary: All-polymer solar cells have attracted significant research interest due to their good film formation, stable morphology, and mechanical flexibility. The strategy of polymerizing small-molecule acceptors to construct new-generation polymer acceptors has significantly increased the power conversion efficiency, but current challenges and future prospects still need to be addressed.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Multidisciplinary

Donor-Acceptor Alternating Copolymer Compatibilizers for Thermally Stable, Mechanically Robust, and High-Performance Organic Solar Cells

Jin-Woo Lee et al.

Summary: The study demonstrates the use of donor-acceptor alternating copolymer-type compatibilizers (DACCs) in high-performance SMA-based organic solar cells to enhance their power conversion efficiency, thermal stability, and mechanical robustness. Addition of DACCs effectively reduces interfacial tensions and stabilizes interfaces in polymer donor (P-D)-SMA blends, resulting in desired morphologies with exceptional thermal stability and mechanical robustness. OSCs with 20 wt % DACCs exhibit excellent morphological stability, retaining over 95% of initial power conversion efficiency after 300 hours at elevated temperature, contrasting with control OSCs without DACCs which degraded rapidly.

ACS NANO (2021)

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Article Chemistry, Physical

Highly Efficient and Stable All-Polymer Solar Cells Enabled by Near-Infrared Isomerized Polymer Acceptors

Tao Wang et al.

Summary: This study investigated the effects of regioisomerized structures on the molecular and photovoltaic properties of near-infrared polymer acceptors (P(A)s) constructed from n-type fused-ring electron acceptors (FREAs). The results showed that the PYTT-2 system had the best photovoltaic performance and stability among the three isomeric FREA-based P(A)s.

CHEMISTRY OF MATERIALS (2021)

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Article Chemistry, Physical

Introducing Electron-Withdrawing Linking Units and Thiophene π-Bridges into Polymerized Small Molecule Acceptors for High-Efficiency All-Polymer Solar Cells

Liuyang Zhou et al.

Summary: The study demonstrates that introducing weak electron-withdrawing A-units and thiophene pi-bridges can enhance the performance of all-polymer solar cells by synthesizing a series of narrow bandgap polymer acceptors.

CHEMISTRY OF MATERIALS (2021)

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Article Chemistry, Multidisciplinary

15.4% Efficiency all-polymer solar cells

Long Zhang et al.

Summary: By tuning the molecular weights of the polymer donor, researchers achieved a record-high power conversion efficiency in all-polymer solar cells. The combination of polymer donors with a newly reported polymer acceptor resulted in unprecedented high PCE and fill factor values. Detailed morphology investigation revealed the importance of proper phase separation in achieving superior device performance in all-polymer solar cells.

SCIENCE CHINA-CHEMISTRY (2021)

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Article Chemistry, Physical

Efficient, Thermally Stable, and Mechanically Robust All-Polymer Solar Cells Consisting of the Same Benzodithiophene Unit-Based Polymer Acceptor and Donor with High Molecular Compatibility

Jin-Woo Lee et al.

Summary: Researchers have developed a series of polymer acceptors based on non-fullerene small molecule acceptors, which show enhanced compatibility and performance when blended with high-performance polymer donors.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Physical

The Intrinsic Role of Molecular Mass and Polydispersity Index in High-Performance Non-Fullerene Polymer Solar Cells

Mumin Shi et al.

Summary: The degree of polymerization significantly affects the microstructure and performance of non-fullerene polymer solar cells, while the diverse stability issues pose a challenge for evaluating material application potential. Systematically studying the effects of polymerization degree on efficiency and stability, along with finding a balance between the efficiency-stability gap, can guide material design and evaluation more effectively.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Physical

Fluorinated End Group Enables High-Performance All-Polymer Solar Cells with Near-Infrared Absorption and Enhanced Device Efficiency over 14%

Han Yu et al.

Summary: Fluorination of end groups enhances the performance of polymer acceptors, leading to higher power conversion efficiency in all-polymer solar cells.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Multidisciplinary

High-Performance All-Polymer Solar Cells with a Pseudo-Bilayer Configuration Enabled by a Stepwise Optimization Strategy

Qiang Wu et al.

Summary: In this study, a high-efficiency PBDB-T/PYT all-organic solar cell was successfully fabricated using a special LbL deposition technique, achieving an efficiency of 15.17% through synergistic control of additive dosages. It was found that this synergistic control of additive dosages was also confirmed in other photovoltaic systems.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Regio-Regular Polymer Acceptors Enabled by Determined Fluorination on End Groups for All-Polymer Solar Cells with 15.2 % Efficiency

Han Yu et al.

Summary: The two regio-regular polymer acceptors synthesized in this study show significant performance difference, with PYF-T-o exhibiting better photon absorption and more ordered inter-chain packing, resulting in higher power conversion efficiency.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Polymer Science

Highly Efficient All-Polymer Solar Cells from a Dithieno[3,2-f:2′,3′-h]quinoxaline-Based Wide Band Gap Donor

Tingxing Zhao et al.

Summary: By synthesizing polymers with different molecular structures as donors and acceptors, researchers found that the adjustment of molecular structures can enhance the performance of all-polymer solar cells.

MACROMOLECULES (2021)

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Article Chemistry, Multidisciplinary

High Efficiency (15.8%) All-Polymer Solar Cells Enabled by a Regioregular Narrow Bandgap Polymer Acceptor

Huiting Fu et al.

Summary: A new class of narrow-bandgap polymer acceptors, the PZT series, was developed to address challenges in all-polymer solar cells, resulting in improved performance due to red-shifted optical absorption and up-shifted energy levels. The regioregular PZT-gamma was specifically designed to avoid isomer formation during polymerization, leading to enhanced efficiency, short-circuit current density, and energy loss in all-PSCs.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

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Article Chemistry, Multidisciplinary

Improving photovoltaic parameters of all-polymer solar cells through integrating two polymeric donors

Kang An et al.

Summary: The incorporation of the wide-bandgap polymer donor PM6 into all-polymer solar cells has been shown to enhance photovoltaic parameters and reduce non-radiative recombination energy loss, leading to improved device efficiency. The optimized ternary blend devices exhibit impressively high power conversion efficiency, indicating the great potential of these all-polymer solar cells for potential applications.

SCIENCE CHINA-CHEMISTRY (2021)

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Article Chemistry, Physical

π-Extended Conjugated Polymer Acceptor Containing Thienylene-Vinylene-Thienylene Unit for High-Performance Thick-Film All-Polymer Solar Cells with Superior Long-Term Stability

Jiabin Zhang et al.

Summary: Novel polymerized small molecular acceptors, PJTVT and PJTET, were designed with conjugated and unconjugated linking units respectively, demonstrating improved efficiency and stability for all-polymer solar cells through molecular modulation in the linking unit of the polymer acceptor.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Physical

Simple Nonfused Ring Electron Acceptors with 3D Network Packing Structure Boosting the Efficiency of Organic Solar Cells to 15.44%

Xiaodong Wang et al.

Summary: NFREAs with increasing pi-conjugation length show enhanced molar extinction coefficient and electron mobility in blend films. The molecular conformation of 2BTh-2F is planar, supported by S···N and S···O intramolecular interactions, and it forms a 3D network packing structure compared to the 2D packing of 2Th-2F. 2BTh-2F:PBDB-T-based organic solar cells achieve a high power conversion efficiency of 14.53%, reaching a record efficiency of 15.44% when D18 is used as the donor polymer.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Physical

High-Efficiency All-Polymer Solar Cells with Poly-Small-Molecule Acceptors Having π-Extended Units with Broad Near-IR Absorption

Ning Su et al.

Summary: Two new poly-small-molecule acceptors, PYN-BDT and PYN-BDTF, with p-extended naphthalene rings, demonstrated broad optical cross-section macromolecular absorbers in all-polymer solar cells, leading to enhanced power conversion efficiencies. The blend morphology, GIWAXS, charge transport, exciton and carrier dynamics, and impedance-based analysis show that extending individual polymer acceptor blocks represents an efficient strategy to achieve high-performance cells with enhanced metrics.

ACS ENERGY LETTERS (2021)

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Article Chemistry, Physical

16% efficiency all-polymer organic solar cells enabled by a finely tuned morphology via the design of ternary blend

Tao Liu et al.

Summary: The performance of all-polymer organic solar cells has been improved by introducing a small amount of BN-T, resulting in increased crystallinity and enhanced exciton harvesting and charge transport. This enhancement is attributed to the reduced nonradiative energy loss and improved energy and charge transfer between acceptors, making AP-OSCs potentially as efficient as devices based on small molecule acceptors.

JOULE (2021)

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Article Chemistry, Multidisciplinary

Configurational Isomers Induced Significant Difference in All-Polymer Solar Cells

Hengtao Wang et al.

Summary: The design and synthesis of polymer acceptors play a crucial role in the performance of all-polymer solar cells. By separating and controlling the monomer configuration, two isomeric polymeric acceptors were produced, with the gamma-based polymer showing the highest power conversion efficiency. The results demonstrate that configurational control is a promising strategy for achieving high-performance polymer acceptors.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Multidisciplinary

A Difluoro-Monobromo End Group Enables High-Performance Polymer Acceptor and Efficient All-Polymer Solar Cells Processable with Green Solvent under Ambient Condition

Han Yu et al.

Summary: This study successfully increased the efficiency of all-polymer solar cells to 15.22% by designing and synthesizing a new polymer acceptor PY2F-T, demonstrating the effectiveness of fluorination strategy in improving photon absorption and charge mobility. Additionally, devices based on PY2F-T showed smaller domain spacing and higher domain purity, effectively suppressing charge recombination.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Multi-Selenophene-Containing Narrow Bandgap Polymer Acceptors for All-Polymer Solar Cells with over 15 % Efficiency and High Reproducibility

Qunping Fan et al.

Summary: The newly developed multi-selenophene-containing PSMA material PFY-3Se shows outstanding performance in all-polymer solar cells, with high efficiency, low energy loss, and good batch-to-batch reproducibility, indicating great potential for practical applications.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Multidisciplinary

A Distannylated Monomer of a Strong Electron-Accepting Organoboron Building Block: Enabling Acceptor-Acceptor-Type Conjugated Polymers for n-Type Thermoelectric Applications

Changshuai Dong et al.

Summary: Acceptor-acceptor (A-A) copolymerization is an effective strategy to develop high-performance n-type conjugated polymers. By synthesizing a strong electron-deficient BNBP monomer, A-A type conjugated polymers with ultralow LUMO energy levels were successfully developed via Stille polycondensation, showing promising thermoelectric properties. This demonstrates the great potential of A-A type organoboron polymers for high-performance n-type thermoelectrics.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Energy & Fuels

Non-fullerene acceptors with branched side chains and improved molecular packing to exceed 18% efficiency in organic solar cells

Chao Li et al.

Summary: The molecular design of acceptor and donor molecules has significantly advanced organic photovoltaics. By introducing branched alkyl chains in non-fullerene acceptors, favorable morphology in the active layer can be achieved, leading to a certified device efficiency of 17.9%. This modification can completely alter the molecular packing behavior of non-fullerene acceptors, resulting in improved structural order and charge transport in thin films.

NATURE ENERGY (2021)

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Article Chemistry, Physical

Achieving over 17% efficiency of ternary all-polymer solar cells with two well-compatible polymer acceptors

Rui Sun et al.

Summary: The study focuses on developing high-performance all-polymer solar cells by designing a novel polymer acceptor PY2F-T and enhancing efficiency through ternary blend with PYT in the PM6: PY2F-T host system. This approach significantly improves power conversion efficiency and stability, marking a promising future for the application of all-PSCs.

JOULE (2021)

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Review Chemistry, Multidisciplinary

Stability Of Non-Fullerene Electron Acceptors and Their Photovoltaic Devices

Wei Li et al.

Summary: Non-fullerene electron acceptors (NFAs) have gained significant attention in the organic solar cells (OSCs) field, showing remarkable development but facing stability challenges. This review highlights recent advances in understanding the stability of NFAs and their corresponding OSCs, focusing on chemical-, photon-, and thermal-induced degradations and approaches to enhance stability, with a vision of achieving over 20 years operational lifetime in real world applications.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Regioregular Narrow-Bandgap n-Type Polymers with High Electron Mobility Enabling Highly Efficient All-Polymer Solar Cells

Huiliang Sun et al.

Summary: The study successfully improved the efficiency of all-polymer solar cells by synthesizing narrow-bandgap polymer acceptors with regular structures. By introducing a ternary system with different components, further optimization of blend morphology and charge transport was achieved, leading to an enhanced power conversion efficiency.

ADVANCED MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Single-Junction Organic Photovoltaic Cell with 19% Efficiency

Yong Cui et al.

Summary: By combining material design and ternary blending strategy, a maximum power conversion efficiency of 19.0% is achieved in single-junction OPV cells. Optimized active layer structure significantly improves the photovoltaic parameters, enhancing the performance and PCE values of the cells.

ADVANCED MATERIALS (2021)

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Review Chemistry, Multidisciplinary

Noble-Metal-Free Multicomponent Nanointegration for Sustainable Energy Conversion

Haijiao Lu et al.

Summary: Global energy and environmental crises have led to a growing interest in the development of renewable chemical fuels as alternatives to fossil fuels. Multicomponent nanomaterial-based systems with at least one component in the nanoscale have emerged as promising solutions to overcome the limitations of single-component systems. These higher-efficiency systems have the potential to reduce costs and improve sustainability in energy conversion technologies.

CHEMICAL REVIEWS (2021)

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Article Polymer Science

Polymerized small-molecule acceptors based on vinylene as π-bridge for efficient all-polymer solar cells

Xinbi Zhao et al.

Summary: Two NIR polymer acceptors based on fused-ring BT- or BTz-based A'-DAD-A' structure were designed and synthesized. Among them, PYV-Tz with BTz unit displayed red-shifted absorption spectra, higher absorption coefficient, higher LUMO energy level, better electron mobility, and achieved a higher PCE in all-PSCs compared to the BT-based PA PYV. This suggests that PYV-Tz is a promising polymer acceptor material for the application in all-PSCs.

POLYMER (2021)

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Article Chemistry, Multidisciplinary

High-performance all-polymer solar cells enabled by a novel low bandgap non-fully conjugated polymer acceptor

Qunping Fan et al.

Summary: A novel non-fully conjugated polymer acceptor PFY-2TS with a low bandgap was developed and showed improved performance in all-polymer solar cells with a PCE of 12.31% and reduced energy loss. This study demonstrated that non-fully conjugated polymers as a new class of acceptor materials are very promising for the development of high-performance all-polymer solar cells.

SCIENCE CHINA-CHEMISTRY (2021)

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Article Multidisciplinary Sciences

Polymerized small molecular acceptor based all-polymer solar cells with an efficiency of 16.16% via tuning polymer blend morphology by molecular design

Jiaqi Du et al.

Summary: Recent advancements have been made in all-polymer solar cells (all-PSCs) based on polymerized small molecular acceptors (PSMAs). Two new A-DA'D-A small molecule acceptor based PSMAs, PS-Se and PN-Se, were synthesized to study the impact of molecular structure on photovoltaic performance. Cryogenic transmission electron microscopy and photoinduced force microscopy revealed the aggregation behavior and morphology of the polymer and acceptor blend films, leading to higher power conversion efficiency in all-PSCs.

NATURE COMMUNICATIONS (2021)

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Article Multidisciplinary Sciences

Non-fullerene acceptor organic photovoltaics with intrinsic operational lifetimes over 30 years

Yongxi Li et al.

Summary: Organic photovoltaic cells (OPVs) have the potential of being a productive renewable energy technology, but the main challenge lies in their inadequate operational lifetime. Research into the instability of NFA solar cells has led to proposals for strategies to mitigate this issue.

NATURE COMMUNICATIONS (2021)

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Article Electrochemistry

Thiophene with Oligoethylene Oxide Side Chain Enables Random Terpolymer Acceptor to Achieve Efficient All-Polymer Solar Cells

Feiyan Wu et al.

Summary: The development of high-performance polymer acceptors for all-polymer solar cells is a key challenge, and introducing a thiophene with oligoethylene oxide side chains as the third unit can improve the compatibility between the polymer donor and acceptor, resulting in optimized blend film morphology and higher photoelectric conversion efficiency.

CHEMELECTROCHEM (2021)

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Article Chemistry, Physical

Intrinsically Stretchable Organic Solar Cells with Efficiencies of over 11%

Jonghyeon Noh et al.

Summary: This study integrates multiple stretchable layers with strong bindings to achieve intrinsically SOSCs of over 11%, maintaining over 74% of the initial power conversion efficiency (PCE) when subject to 10% strain for 1,000 cycles. This high-performance and mechanical endurance demonstrate that SOSCs are one step closer toward practical utilization in wearable electronics.

ACS ENERGY LETTERS (2021)

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Article Chemistry, Physical

Reduced non-radiative charge recombination enables organic photovoltaic cell approaching 19% efficiency

Pengqing Bi et al.

Summary: Introducing HDO-4Cl increased the exciton diffusion length in the acceptor phase, reducing non-radiative charge recombination and improving photon utilization efficiency in PBDB-TF: eC9-based OPV cells. This led to achieving a high-efficiency OPV cell with outstanding power conversion efficiency, demonstrating the effectiveness of regulating exciton behaviors in reducing energy loss.

JOULE (2021)

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Article Energy & Fuels

Fine Tuning Miscibility of Donor/Acceptor through Solid Additives Enables All-Polymer Solar Cells with 15.6% Efficiency

Zhenye Li et al.

Summary: The study demonstrates that adding 1% weight ratio of PC71BM as a solid additive in the blends of electron-donating polymer PTzBI-oF and electron-accepting polymer PFA1 can improve the miscibility of donor/acceptor, leading to enhanced charge carrier transport and fill factor, ultimately increasing the maximum power conversion efficiency. The miscibility of two components in the photoactive layer can be quantitatively described using the Flory-Huggins interaction parameter (chi), providing guidelines for optimizing the efficiency of all-PSCs.

SOLAR RRL (2021)

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Article Chemistry, Physical

A polymer acceptor containing the B←N unitfor all-polymer solar cells with 14% efficiency

Yinghui Wang et al.

Summary: A new polymer acceptor was developed by incorporating the B <- N coordination bond, which downshifted the energy levels of the polymer and facilitated photo-induced hole transfer, resulting in a higher power conversion efficiency for all-polymer solar cells.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Chemistry, Multidisciplinary

Achieving highly efficient all-polymer solar cells by green-solvent-processing under ambient atmosphere

Bin Liu et al.

Summary: The use of halogen-free solvents can produce efficient and environmentally friendly all-polymer solar cells. In this study, all-PSCs processed with o-XY solvent achieved remarkable performance, demonstrating potential for practical applications.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

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Article Chemistry, Physical

All-polymer solar cells with efficiency approaching 16% enabled using a dithieno[3′,2′:3,4;2′′,3′′:5,6]benzo[1,2-c][1,2,5]thiadiazole (fDTBT)-based polymer donor

Tao Jia et al.

Summary: This study designed a series of large-bandgap polymer donors and validated their device performances in all-polymer solar cells by combining them with a polymer acceptor, achieving high efficiency with a maximum of 15.8%. The systems showed more efficient charge transfer and less charge recombination as the energy-level offsets increased, leading to improved short-circuit current density, fill factors, and power conversion efficiency.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Chemistry, Multidisciplinary

Constructing a new polymer acceptor enabled non-halogenated solvent-processed all-polymer solar cell with an efficiency of 13.8%

Chunguang Zhu et al.

Summary: A new polymer acceptor, PS1, was developed by linking a non-fullerene acceptor building block with dithienothiophen[3,2-b]pyrrolo-benzotriazole capped with 3-(dicyanomethylidene)-indan-1-one via a thiophene spacer, enabling it to be easily dissolved in non-chlorinated solvents. When using 2-methyltetrahydrofuran as the processing solvent, the all-PSC composed of PS1 and a polymer donor PTzBI-oF achieved a remarkably high power conversion efficiency of 13.8% in the light-harvesting layer.

CHEMICAL COMMUNICATIONS (2021)

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Article Chemistry, Physical

Organoboron Polymer for 10% Efficiency All-Polymer Solar Cells

Ruyan Zhao et al.

CHEMISTRY OF MATERIALS (2020)

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Article Multidisciplinary Sciences

Simultaneous enhanced efficiency and thermal stability in organic solar cells from a polymer acceptor additive

Wenyan Yang et al.

NATURE COMMUNICATIONS (2020)

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Review Chemistry, Multidisciplinary

Recent Progress in Chlorinated Organic Photovoltaic Materials

Huifeng Yao et al.

ACCOUNTS OF CHEMICAL RESEARCH (2020)

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Article Chemistry, Multidisciplinary

High-Performance All-Polymer Solar Cells: Synthesis of Polymer Acceptor by a Random Ternary Copolymerization Strategy

Jiaqi Du et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

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Review Materials Science, Multidisciplinary

Recent progress of all-polymer solar cells - From chemical structure and device physics to photovoltaic performance

Hang Yin et al.

MATERIALS SCIENCE & ENGINEERING R-REPORTS (2020)

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Article Chemistry, Physical

New Phase for Organic Solar Cell Research: Emergence of Y-Series Electron Acceptors and Their Perspectives

Shuixing Li et al.

ACS ENERGY LETTERS (2020)

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Review Chemistry, Multidisciplinary

Polymer Acceptors Containing B←N Units for Organic Photovoltaics

Ruyan Zhao et al.

ACCOUNTS OF CHEMICAL RESEARCH (2020)

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Article Chemistry, Multidisciplinary

High-Performance All-Polymer Solar Cells Enabled by n-Type Polymers with an Ultranarrow Bandgap Down to 1.28 eV

Kui Feng et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Multidisciplinary

A Non-Conjugated Polymer Acceptor for Efficient and Thermally Stable All-Polymer Solar Cells

Qunping Fan et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

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Article Chemistry, Physical

14.4% efficiency all-polymer solar cell with broad absorption and low energy loss enabled by a novel polymer acceptor

Tao Jia et al.

NANO ENERGY (2020)

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Review Chemistry, Multidisciplinary

Chlorination: An Effective Strategy for High-Performance Organic Solar Cells

Qiaoqiao Zhao et al.

ADVANCED SCIENCE (2020)

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Article Chemistry, Multidisciplinary

High-Performance n-Type Polymer Semiconductors: Applications, Recent Development, and Challenges

Huiliang Sun et al.

CHEM (2020)

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Article Chemistry, Physical

Controlling Molecular Mass of Low-Band-Gap Polymer Acceptors for High-Performance All-Polymer Solar Cells

Wei Wang et al.

JOULE (2020)

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Article Energy & Fuels

10.13% Efficiency All-Polymer Solar Cells Enabled by Improving the Optical Absorption of Polymer Acceptors

Qunping Fan et al.

SOLAR RRL (2020)

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Article Chemistry, Multidisciplinary

A Narrow-Bandgap n-Type Polymer with an Acceptor-Acceptor Backbone Enabling Efficient All-Polymer Solar Cells

Huiliang Sun et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Progress in Materials, Solution Processes, and Long-Term Stability for Large-Area Organic Photovoltaics

Sungmin Park et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Multidisciplinary

High-performance all-polymer solar cells with only 0.47 eV energy loss

Qiang Wu et al.

SCIENCE CHINA-CHEMISTRY (2020)

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Article Chemistry, Physical

All-Polymer Solar Cells with over 12% Efficiency and a Small Voltage Loss Enabled by a Polymer Acceptor Based on an Extended Fused Ring Core

Huatong Yao et al.

ADVANCED ENERGY MATERIALS (2020)

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Article Chemistry, Multidisciplinary

A Non-fullerene Acceptor with Enhanced Intermolecular π-Core Interaction for High-Performance Organic Solar Cells

Francis Lin et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

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Article Energy & Fuels

Highly Efficient All-Polymer Solar Cells Enabled by Random Ternary Copolymer Acceptors with High Tolerance on Molar Ratios

Yao Wu et al.

SOLAR RRL (2020)

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Article Chemistry, Physical

Impact of π-Conjugated Linkers on the Effective Exciton Binding Energy of Diketopyrrolopyrrole-Dithienopyrrole Copolymers

Pieter J. Leenaers et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2020)

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Review Chemistry, Multidisciplinary

Hole (donor) and electron (acceptor) transporting organic semiconductors for bulk-heterojunction solar cells

Jianhua Chen et al.

ENERGYCHEM (2020)

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Article Chemistry, Physical

A Universal Fluorinated Polymer Acceptor Enables All-Polymer Solar Cells with >15% Efficiency

Feng Peng et al.

ACS ENERGY LETTERS (2020)

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Article Chemistry, Multidisciplinary

Over 14% efficiency all-polymer solar cells enabled by a low bandgap polymer acceptor with low energy loss and efficient charge separation

Qunping Fan et al.

ENERGY & ENVIRONMENTAL SCIENCE (2020)

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Article Chemistry, Multidisciplinary

Precisely Controlling the Position of Bromine on the End Group Enables Well-Regular Polymer Acceptors for All-Polymer Solar Cells with Efficiencies over 15%

Zhenghui Luo et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Physical

Mechanically Robust All-Polymer Solar Cells from Narrow Band Gap Acceptors with Hetero-Bridging Atoms

Qunping Fan et al.

JOULE (2020)

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Article Chemistry, Multidisciplinary

Tuning the electron-deficient core of a non-fullerene acceptor to achieve over 17% efficiency in a single-junction organic solar cell

Can Zhu et al.

ENERGY & ENVIRONMENTAL SCIENCE (2020)

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Review Chemistry, Multidisciplinary

Critical review of the molecular design progress in non-fullerene electron acceptors towards commercially viable organic solar cells

Andrew Wadsworth et al.

CHEMICAL SOCIETY REVIEWS (2019)

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Article Chemistry, Multidisciplinary

Hybridization of Local Exciton and Charge-Transfer States Reduces Nonradiative Voltage Losses in Organic Solar Cells

Flurin D. Eisner et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

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Article Chemistry, Multidisciplinary

11.2% Efficiency all-polymer solar cells with high open-circuit voltage

Yuan Meng et al.

SCIENCE CHINA-CHEMISTRY (2019)

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Review Chemistry, Multidisciplinary

Recent Advances, Design Guidelines, and Prospects of All-Polymer Solar Cells

Changyeon Lee et al.

CHEMICAL REVIEWS (2019)

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Article Chemistry, Multidisciplinary

A Narrow-Bandgap n-Type Polymer Semiconductor Enabling Efficient All-Polymer Solar Cells

Shengbin Shi et al.

ADVANCED MATERIALS (2019)

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Article Chemistry, Multidisciplinary

Aggregation-Induced Multilength Scaled Morphology Enabling 11.76% Efficiency in All-Polymer Solar Cells Using Printing Fabrication

Lei Zhu et al.

ADVANCED MATERIALS (2019)

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Article Chemistry, Physical

Bromination of the Small-Molecule Acceptor with Fixed Position for High-Performance Solar Cells

Jianfei Qu et al.

CHEMISTRY OF MATERIALS (2019)

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Article Multidisciplinary Sciences

Intrinsically stable organic solar cells under high-intensity illumination

Quinn Burlingame et al.

NATURE (2019)

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Article Chemistry, Physical

Evaporation-Free Nonfullerene Flexible Organic Solar Cell Modules Manufactured by An All-Solution Process

Yong Woon Han et al.

ADVANCED ENERGY MATERIALS (2019)

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Review Chemistry, Multidisciplinary

Large-Area Organic Solar Cells: Material Requirements, Modular Designs, and Printing Methods

Guodong Wang et al.

ADVANCED MATERIALS (2019)

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Review Chemistry, Multidisciplinary

All-Polymer Solar Cells: Recent Progress, Challenges, and Prospects

Gang Wang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

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Article Energy & Fuels

Non-fullerene polymer acceptors based on perylene diimides in all-polymer solar cells

Zhitian Liu et al.

SOLAR ENERGY MATERIALS AND SOLAR CELLS (2019)

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Article Chemistry, Physical

Efficient All-Polymer Solar Cells based on a New Polymer Acceptor Achieving 10.3% Power Conversion Efficiency

Huatong Yao et al.

ACS ENERGY LETTERS (2019)

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Review Chemistry, Multidisciplinary

Recent Advances in n-Type Polymers for All-Polymer Solar Cells

Zewdneh Genene et al.

ADVANCED MATERIALS (2019)

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Article Chemistry, Multidisciplinary

High-Performance All-Polymer Solar Cells Enabled by an n-Type Polymer Based on a Fluorinated Imide-Functionalized Arene

Huiliang Sun et al.

ADVANCED MATERIALS (2019)

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Review Chemistry, Physical

From fullerene acceptors to non-fullerene acceptors: prospects and challenges in the stability of organic solar cells

Emily M. Speller et al.

JOURNAL OF MATERIALS CHEMISTRY A (2019)

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Article Energy & Fuels

Triimide-Functionalized n-Type Polymer Semiconductors Enabling All-Polymer Solar Cells with Power Conversion Efficiencies Approaching 9%

Yingfeng Wang et al.

SOLAR RRL (2019)

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Article Chemistry, Multidisciplinary

A generic green solvent concept boosting the power conversion efficiency of all-polymer solar cells to 11%

Zhenye Li et al.

ENERGY & ENVIRONMENTAL SCIENCE (2019)

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Article Chemistry, Physical

Single-Junction Organic Solar Cell with over 15% Efficiency Using Fused-Ring Acceptor with Electron-Deficient Core

Jun Yuan et al.

JOULE (2019)

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Article Chemistry, Physical

Alkyl Chain Tuning of Small Molecule Acceptors for Efficient Organic Solar Cells

Kui Jiang et al.

JOULE (2019)

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Article Chemistry, Physical

All-polymer solar cells based on a novel narrow-bandgap polymer acceptor with power conversion efficiency over 10%

Jingnan Wu et al.

JOURNAL OF MATERIALS CHEMISTRY A (2019)

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Review Chemistry, Multidisciplinary

High-performance conjugated polymer donor materials for polymer solar cells with narrow-bandgap nonfullerene acceptors

Chaohua Cui et al.

ENERGY & ENVIRONMENTAL SCIENCE (2019)

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Review Chemistry, Multidisciplinary

Nonfullerene Acceptor Molecules for Bulk Heterojunction Organic Solar Cells

Guangye Zhang et al.

CHEMICAL REVIEWS (2018)

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Article Materials Science, Multidisciplinary

Naphthalenediimide (NDI) polymers for all-polymer photovoltaics

Nanjia Zhou et al.

MATERIALS TODAY (2018)

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Article Chemistry, Physical

Quantitative relations between interaction parameter, miscibility and function in organic solar cells

Long Ye et al.

NATURE MATERIALS (2018)

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Review Chemistry, Physical

Organic solar cells based on non-fullerene acceptors

Jianhui Hou et al.

NATURE MATERIALS (2018)

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Review Optics

Next-generation organic photovoltaics based on non-fullerene acceptors

Pei Cheng et al.

NATURE PHOTONICS (2018)

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Review Polymer Science

Conjugation break spacers and flexible linkers as tools to engineer the properties of semiconducting polymers

Aiman Rahmanudin et al.

POLYMER JOURNAL (2018)

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Review Green & Sustainable Science & Technology

Fundamentals of bulk heterojunction organic solar cells: An overview of stability/degradation issues and strategies for improvement

Saqib Rafique et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2018)

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Review Energy & Fuels

Material insights and challenges for non-fullerene organic solar cells based on small molecular acceptors

Jianquan Zhang et al.

NATURE ENERGY (2018)

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Review Nanoscience & Nanotechnology

Non-fullerene acceptors for organic solar cells

Cenqi Yan et al.

NATURE REVIEWS MATERIALS (2018)

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Article Chemistry, Physical

Selenopheno[3,2-b]thiophene-Based Narrow-Bandgap Nonfullerene Acceptor Enabling 13.3% Efficiency for Organic Solar Cells with Thickness-Insensitive Feature

Jin-Liang Wang et al.

ACS ENERGY LETTERS (2018)

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Review Chemistry, Multidisciplinary

Progress in Understanding Degradation Mechanisms and Improving Stability in Organic Photovoltaics

William R. Mateker et al.

ADVANCED MATERIALS (2017)

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Article Chemistry, Physical

The path towards sustainable energy

Steven Chu et al.

NATURE MATERIALS (2017)

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Article Chemistry, Physical

Thieno[3,4-c]Pyrrole-4,6-Dione-Based Polymer Acceptors for High Open-Circuit Voltage All-Polymer Solar Cells

Shengjian Liu et al.

ADVANCED ENERGY MATERIALS (2017)

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Article Chemistry, Physical

High-photovoltage all-polymer solar cells based on a diketopyrrolopyrrole-isoindigo acceptor polymer

Zhaojun Li et al.

JOURNAL OF MATERIALS CHEMISTRY A (2017)

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Article Chemistry, Multidisciplinary

Effects of Bithiophene Imide Fusion on the Device Performance of Organic Thin-Film Transistors and All-Polymer Solar Cells

Yingfeng Wang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2017)

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Article Chemistry, Multidisciplinary

Constructing a Strongly Absorbing Low-Bandgap Polymer Acceptor for High-Performance All-Polymer Solar Cells

Zhi-Guo Zhang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2017)

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Article Chemistry, Multidisciplinary

Improved Performance of All-Polymer Solar Cells Enabled by Naphthodiperylenetetraimide-Based Polymer Acceptor

Yikun Guo et al.

ADVANCED MATERIALS (2017)

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Review Chemistry, Multidisciplinary

Diketopyrrolopyrrole Polymers for Organic Solar Cells

Weiwei Li et al.

ACCOUNTS OF CHEMICAL RESEARCH (2016)

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Article Chemistry, Multidisciplinary

An Electron-Deficient Building Block Based on the B←N Unit: An Electron Acceptor for All-Polymer Solar Cells

Chuandong Dou et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2016)

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Review Chemistry, Multidisciplinary

From Fullerene-Polymer to All-Polymer Solar Cells: The Importance of Molecular Packing, Orientation, and Morphology Control

Hyunbum Kang et al.

ACCOUNTS OF CHEMICAL RESEARCH (2016)

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Article Chemistry, Multidisciplinary

Thieno[3,4-c]pyrrole-4,6-dione-3,4-difluorothiophene Polymer Acceptors for Efficient All-Polymer Bulk Heterojunction Solar Cells

Shengjian Liu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2016)

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Review Chemistry, Multidisciplinary

Stability of organic solar cells: challenges and strategies

Pei Cheng et al.

CHEMICAL SOCIETY REVIEWS (2016)

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Article Chemistry, Multidisciplinary

Tin-Free Direct C-H Arylation Polymerization for High Photovoltaic Efficiency Conjugated Copolymers

Alexander S. Dudnik et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2016)

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Article Chemistry, Multidisciplinary

All-Polymer Solar Cell Performance Optimized via Systematic Molecular Weight Tuning of Both Donor and Acceptor Polymers

Nanjia Zhou et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2016)

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Article Chemistry, Multidisciplinary

High Performance All-Polymer Solar Cells by Synergistic Effects of Fine-Tuned Crystallinity and Solvent Annealing

Zhaojun Li et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2016)

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Article Chemistry, Physical

Comparison of the Morphology Development of Polymer-Fullerene and Polymer-Polymer Solar Cells during Solution-Shearing Blade Coating

Xiaodan Gu et al.

ADVANCED ENERGY MATERIALS (2016)

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Review Chemistry, Physical

Recent research progress of polymer donor/polymer acceptor blend solar cells

Hiroaki Benten et al.

JOURNAL OF MATERIALS CHEMISTRY A (2016)

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Article Chemistry, Multidisciplinary

An Electron Acceptor Challenging Fullerenes for Efficient Polymer Solar Cells

Yuze Lin et al.

ADVANCED MATERIALS (2015)

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Review Chemistry, Multidisciplinary

Recent Advances in Bulk Heterojunction Polymer Solar Cells

Luyao Lu et al.

CHEMICAL REVIEWS (2015)

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Article Chemistry, Physical

Phase Diagram of Conjugated Polymer Blend P3HT/PF12TBT and the Morphology-Dependent Photovoltaic Performance

Ke Zhou et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2015)

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Article Chemistry, Multidisciplinary

Determining the Role of Polymer Molecular Weight for High-Performance All-Polymer Solar Cells: Its Effect on Polymer Aggregation and Phase Separation

Hyunbum Kang et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2015)

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Article Chemistry, Multidisciplinary

Chalcogenophene Comonomer Comparison in Small Band Gap Diketopyrrolopyrrole-Based Conjugated Polymers for High-Performing Field-Effect Transistors and Organic Solar Cells

Raja Shahid Ashraf et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2015)

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Review Chemistry, Applied

Recent advances in rylene diimide polymer acceptors for all-polymer solar cells

Xin Guo et al.

JOURNAL OF ENERGY CHEMISTRY (2015)

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Review Chemistry, Multidisciplinary

Mesoscopic Features of Charge Generation in Organic Semiconductors

Brett M. Savoie et al.

ACCOUNTS OF CHEMICAL RESEARCH (2014)

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Review Chemistry, Multidisciplinary

Tailor-Made Rylene Arrays for High Performance n-Channel Semiconductors

Wei Jiang et al.

ACCOUNTS OF CHEMICAL RESEARCH (2014)

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Article Chemistry, Multidisciplinary

Polymer Solar Cells with Diketopyrrolopyrrole Conjugated Polymers as the Electron Donor and Electron Acceptor

Weiwei Li et al.

ADVANCED MATERIALS (2014)

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Article Chemistry, Multidisciplinary

Scalable, ambient atmosphere roll-to-roll manufacture of encapsulated large area, flexible organic tandem solar cell modules

Thomas R. Andersen et al.

ENERGY & ENVIRONMENTAL SCIENCE (2014)

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Review Materials Science, Multidisciplinary

How to design low bandgap polymers for highly efficient organic solar cells

Tao Xu et al.

MATERIALS TODAY (2014)

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Article Chemistry, Multidisciplinary

All-Polymer Solar Cells with 3.3% Efficiency Based on Naphthalene Diimide-Selenophene Copolymer Acceptor

Taeshik Earmme et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2013)

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Review Materials Science, Multidisciplinary

Polymer donor-polymer acceptor (all-polymer) solar cells

Antonio Facchetti

MATERIALS TODAY (2013)

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Review Chemistry, Multidisciplinary

Molecular Design of Photovoltaic Materials for Polymer Solar Cells: Toward Suitable Electronic Energy Levels and Broad Absorption

Yongfang Li

ACCOUNTS OF CHEMICAL RESEARCH (2012)

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Article Chemistry, Multidisciplinary

Morphology of all-polymer solar cells

Christopher R. McNeill

ENERGY & ENVIRONMENTAL SCIENCE (2012)

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Article Polymer Science

Design, Application, and Morphology Study of a New Photovoltaic Polymer with Strong Aggregation in Solution State

Deping Qian et al.

MACROMOLECULES (2012)

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Review Optics

Polymer solar cells

Gang Li et al.

NATURE PHOTONICS (2012)

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Review Chemistry, Multidisciplinary

Influence of blend microstructure on bulk heterojunction organic photovoltaic performance

Christoph J. Brabec et al.

CHEMICAL SOCIETY REVIEWS (2011)

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Review Chemistry, Multidisciplinary

Charge Photogeneration in Organic Solar Cells

Tracey M. Clarke et al.

CHEMICAL REVIEWS (2010)

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Review Physics, Multidisciplinary

Polymer-fullerene bulk heterojunction solar cells

Carsten Deibel et al.

REPORTS ON PROGRESS IN PHYSICS (2010)

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Article Chemistry, Physical

Copolymers of perylene diimide with dithienothiophene and dithienopyrrole as electron-transport materials for all-polymer solar cells and field-effect transistors

Xiaowei Zhan et al.

JOURNAL OF MATERIALS CHEMISTRY (2009)

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Article Multidisciplinary Sciences

A high-mobility electron-transporting polymer for printed transistors

He Yan et al.

NATURE (2009)

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Article Chemistry, Organic

Conjugated Polymers from Naphthalene Bisimide

Xugang Guo et al.

ORGANIC LETTERS (2008)

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Article Energy & Fuels

Nanoscale structure of solar cells based on pure conjugated polymer blends

Sjoerd C. Veenstra et al.

PROGRESS IN PHOTOVOLTAICS (2007)

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Article Chemistry, Multidisciplinary

A high-mobility electron-transport polymer with broad absorption and its use in field-effect transistors and all-polymer solar cells

Xiaowei Zhan et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2007)

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Article Multidisciplinary Sciences

Powering the planet: Chemical challenges in solar energy utilization

Nathan S. Lewis et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2006)

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Article Chemistry, Physical

Novel electroluminescent conjugated polyelectrolytes based on polyfluorene

F Huang et al.

CHEMISTRY OF MATERIALS (2004)

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