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Review
Chemistry, Multidisciplinary
Xiaopeng Xu et al.
Summary: This review provides an overview of the factors affecting the morphology of ternary blend organic solar cells (TB-OSCs) and summarizes the recent progress in morphology studies, including molecular crystallinity, molecular packing orientation, domain size and purity, etc. It also offers prospects for the future development of TB-OSCs.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
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)
Article
Chemistry, Multidisciplinary
Yaokai Li et al.
Summary: This study systematically investigates the working mechanism of ternary blend organic photovoltaics based on non-fullerene acceptors (NFAs). Molecular dynamics simulations and morphology characterization reveal that the addition of larger band gap and highly miscible NFAs improves composition-dependent band gap and charge recombination, leading to enhanced power conversion efficiency.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Lijian Zuo et al.
Summary: Research shows that the "dilution effect" mechanism in multi-component organic solar cells can enhance luminescence quantum efficiency and open-circuit voltage, achieving high energy conversion efficiency.
NATURE NANOTECHNOLOGY
(2022)
Article
Chemistry, Physical
Kang-Ning Zhang et al.
Summary: This study proposes a photophysical correlation model to explain the relationship between electron-phonon coupling and electronic excitation trapping based on the aggregation behaviors of BTP-eC9 in different processed OSCs. By stabilizing intermolecular electron-phonon coupling through the regulation of donor and acceptor materials, the device efficiency of quaternary OSCs is significantly improved to 18.10%, with enhanced thermal stability, providing valuable insights for further boosting photovoltaic stability.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Thomas P. Chaney et al.
Summary: Precise control of the complex morphology of organic photovoltaic bulk heterojunction (BHJ) active layers is crucial for improving power conversion efficiency. The interfaces between electron donor and acceptor molecules, where charge separation and charge recombination occur, are of particular interest. The mixed phase at these interfaces, critical for unraveling the importance of charge separation and recombination processes, has been extensively studied in polymer:fullerene systems but remains poorly understood in state-of-the-art polymer:non-fullerene acceptor blends.
MATERIALS HORIZONS
(2022)
Article
Chemistry, Physical
Zhong Zheng et al.
Summary: A advanced interconnecting layer for tandem organic solar cell is developed in this study. By controlling the O-2 flux during evaporation, efficient electron extraction and low Schottky barrier are obtained, enabling effective charge recombination between two subcells. The tandem cell with the interconnecting layer shows a high efficiency of 20.27%.
Article
Nanoscience & Nanotechnology
Yongfeng Ni et al.
Summary: A new concept of nonalloy model is proposed for ternary organic solar cells, which can achieve high efficiency and stability by introducing a third component with moderate miscibility and distributing it in the interspace between donor and acceptor domains.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Wuyue Liu et al.
Summary: A novel nonfullerene acceptor (NFA) ATT-9 has been designed and synthesized for high-performance semitransparent organic photovoltaics (ST-OPVs), achieving record efficiency and light utilization without optical modulations while demonstrating excellent thermal insulation, showcasing the outstanding application prospects of multifunctional ST-OPVs.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xiangjun Zheng et al.
Summary: This study develops an advanced device structure for flexible organic photovoltaics (OPVs) without indium-tin-oxide (ITO), using ultrathin Ag as the transparent electrode. The designed device achieves high efficiency, low cost, superior flexibility, and upscaling capacity, making it a potential candidate for future commercialization of OPVs.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jinqiu Xu et al.
Summary: The success of NFA solar cells depends not only on extended absorption and suitable energy levels, but also on the unique physical properties of the nonfullerene acceptors. This study investigates the morphology and photophysical behavior of PBDB-T donor blended with various acceptors, demonstrating the importance of molecular assembly and photophysics in the efficiency of carrier formation. The new carrier generation mechanism and multi-length-scale morphology in blended films hold promising potential for fundamental advantages in NFA solar cells.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
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%.
Article
Multidisciplinary Sciences
Yunhao Cai et al.
Summary: This study demonstrates the fabrication of efficient thick-film organic solar cells by optimizing the structure of the active layer. The use of one polymer donor and two non-fullerene acceptors in the mixed phase enhances the exciton diffusion length, and the layer by layer approach optimizes the vertical phase separation, resulting in high photovoltaic efficiency.
NATURE COMMUNICATIONS
(2022)
Review
Chemistry, Physical
Nutifafa Y. Doumon et al.
Summary: Incorporating a third element in the active layer of organic photovoltaic devices is a promising strategy to improve efficiency and stability. The research on ternary organic solar cells (TOSCs) has experienced significant growth, especially after the breakthrough efficiency in 2017. This review discusses the role of the third component in improving efficiency and stability, and compares the performance of TOSCs to colloidal quantum dot solar cells (CQDSCs).
Article
Chemistry, Physical
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.
Article
Chemistry, Physical
Lingling Zhan et al.
Summary: By adopting a ternary strategy to regulate the structure of symmetric-asymmetric non-fullerene acceptors, a balance between open-circuit voltage and short-circuit current density can be achieved in organic photovoltaics, leading to higher efficiency.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
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)
Article
Multidisciplinary Sciences
Kui Jiang et al.
Summary: High-efficiency OSCs with a pseudo-bilayer architecture and optimized ternary system exhibit longer exciton diffusion length and higher power conversion efficiency. The pseudo-bilayer architecture shows excellent potential for future OSC applications.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Ming Zhang et al.
Summary: By using quaternary blends, double cascading energy level alignment is achieved in bulk heterojunction organic photovoltaic active layers, optimizing light absorption, carrier transport, and charge-transfer state energy levels for higher power conversion efficiencies. The chemical structures of donors and acceptors allow control over electronic structure and charge-transfer state energy levels, enabling manipulation of hole-transfer rates, carrier transport, and non-radiative recombination losses.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Zhongxiang Peng et al.
Summary: Ternary solar cells with both fullerene and nonfullerene acceptors have shown rapid efficiency improvement. Incorporating 20% by weight of PC71BM into the PM6:N3 blend can yield the best device efficiency and ductility. The elastic modulus of ternary blends can be accurately predicted using an extended Halpin-Tsai model, offering potential for various electronic applications.
ADVANCED ENERGY MATERIALS
(2021)
Article
Optics
Ziyan Jia et al.
Summary: In this study, a quaternary blending strategy was successfully applied in the fabrication of organic photovoltaic devices and large-area modules, achieving high efficiencies and proving the synergistic effects of multiple components in OSCs.
PHOTONICS RESEARCH
(2021)
Article
Chemistry, Physical
Yaokai Li et al.
Summary: This study demonstrates the importance of manipulating the optical properties of materials to improve the light-absorbing selectivity of semi-transparent organic photovoltaics (ST-OPVs), resulting in high-efficiency ST-OPVs with improved light utilization efficiency and good color rendering index.
ADVANCED ENERGY MATERIALS
(2021)
Article
Multidisciplinary Sciences
Xinxin Xia et al.
Summary: The morphology of organic thin film, including in-plane and out-of-plane directions, is crucial for the performance of organic solar cells. Utilizing GTSAXS, researchers uncovered the nanomorphology in the out-of-plane dimension and demonstrated its impact on exciton dissociation and charge transfer.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Maximilian Moser et al.
Summary: Advancements in organic photovoltaic materials have led to significant improvements in device performance, but commercial viability remains a challenge. The limitations in high performing blends focus on industrial upscaling considerations, where the use of Y-series nonfullerene acceptors and synthetically simple materials are found to be most effective in maximizing efficiency.
ADVANCED ENERGY MATERIALS
(2021)
Review
Chemistry, Physical
Gabriel Bernardo et al.
Summary: Organic photovoltaic (OPV) cells have significantly increased their power conversion efficiency under AM1.5G conditions, and there is a growing interest in their applications for dim light indoor settings. However, transferring OPV from lab to market still faces challenges, such as scaling up single cells, finding alternatives to vacuum processing and ITO substrates, and improving the lifetime of large area OPV devices.
ADVANCED ENERGY MATERIALS
(2021)
Article
Energy & Fuels
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.
Article
Chemistry, Physical
Zeng Chen et al.
Summary: Nonfullerene acceptor organic solar cells with power conversion efficiency up to 18% show the formation of NFA triplet exciton as a main non-radiative recombination and energy loss channel. Side-chain fluorination in high-efficiency NFA OSCs efficiently inhibits charge recombination to NFA triplet excitons, leading to higher V-OC and PCE. This paves the way for OSCs with lower V-OC loss and efficiency exceeding 20%.
Article
Chemistry, Multidisciplinary
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)
Article
Multidisciplinary Sciences
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)
Article
Multidisciplinary Sciences
Shuixing Li et al.
Summary: The study conducted on four non-fullerene acceptors reveals how extended conjugation, asymmetric terminals, and alkyl chain length can affect device performance. Understanding correlations between molecular structures and macroscopic properties is critical in realizing highly efficient organic photovoltaics.
NATURE COMMUNICATIONS
(2021)
Editorial Material
Chemistry, Physical
Flurin Eisner et al.
Summary: The use of non-fullerene acceptors has enhanced the performance of organic solar cells, but the electrostatic environment at the interface may impose limitations on further improvements.
Article
Chemistry, Physical
Yanfeng Liu et al.
Summary: This study uses in situ spectroscopies to track the morphology evolution during film formation of different BHJ systems, revealing that the component with higher molecular weight dominates the blend film formation process. Time-resolved photoluminescence is employed for the first time as an in situ method for drying studies, providing quantitative determination of dynamic and static quenching as well as changes in quantum yield during film formation.
Review
Chemistry, Multidisciplinary
Chaohua Cui et al.
Summary: Organic solar cells have unique advantages of light weight and low cost, with the morphology of the active layer being crucial for performance. Postdeposition treatments and additive treatments are effective in optimizing the morphology, leading to improved performance in organic photovoltaic applications.
Review
Chemistry, Multidisciplinary
Difei Zhang et al.
Summary: To successfully transfer organic photovoltaic technologies to industrial production, challenges such as developing high-mobility light-harvesting materials, minimizing upscaling losses, and designing advanced solar modules need to be overcome. Efforts have been focused on understanding how molecular structures, device architectures, and carrier dynamics affect photovoltaic performance, leading to guidelines for designing high-efficiency, thickness-insensitive devices for mass production.
Article
Optics
Sha Liu et al.
Article
Chemistry, Multidisciplinary
Shuixing Li et al.
ADVANCED MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Yong Cui et al.
ADVANCED MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Di Wang et al.
ADVANCED MATERIALS
(2020)
Article
Chemistry, Physical
Ruijie Ma et al.
ACS ENERGY LETTERS
(2020)
Article
Chemistry, Physical
Lingeswaran Arunagiri et al.
Article
Chemistry, Multidisciplinary
Rui Wang et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Article
Energy & Fuels
Andrej Classen et al.
Review
Chemistry, Multidisciplinary
Tonghui Wang et al.
TRENDS IN CHEMISTRY
(2020)
Article
Chemistry, Physical
Nurlan Tokmoldin et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
Article
Chemistry, Multidisciplinary
Lingling Zhan et al.
ENERGY & ENVIRONMENTAL SCIENCE
(2020)
Article
Chemistry, Physical
Jun Yuan et al.
Article
Chemistry, Multidisciplinary
Shuixing Li et al.
ADVANCED MATERIALS
(2018)
Article
Chemistry, Physical
Long Ye et al.
ADVANCED ENERGY MATERIALS
(2017)
Article
Chemistry, Multidisciplinary
Maojie Zhang et al.
ADVANCED MATERIALS
(2015)
Article
Chemistry, Multidisciplinary
Yuze Lin et al.
ADVANCED MATERIALS
(2015)
Article
Physics, Applied
Jizhong Yao et al.
PHYSICAL REVIEW APPLIED
(2015)
Article
Chemistry, Multidisciplinary
Detlef-M. Smilgies
JOURNAL OF APPLIED CRYSTALLOGRAPHY
(2009)
Article
Materials Science, Multidisciplinary
Uwe Rau