Regulating the Solvent Resistance of Hole Transport Layer for High-Performance Inverted Perovskite Solar Cells

Article Chemistry, Physical

Wettability Improvement of a Carbazole- Based Hole-Selective Monolayer for Reproducible Perovskite Solar Cells

Amran Al-Ashouri et al.

Summary: The wettability issue of the Me-4PACz hole-selective monolayer is resolved by adding a second component to the precursor solution. This not only improves the device yield but also maintains similar performance.

ACS ENERGY LETTERS (2023)

添加到收藏夹

Article Chemistry, Physical

Reduced VOC Deficit of Mixed Lead-Tin Perovskite Solar Cells via Strain-Releasing and Synergistic Passivation Additives

Wentao Chen et al.

Summary: By incorporating 2,6-diaminopyridine (TNPD) as a nucleating agent, the growth of Pb-Sn perovskites in tin-lead perovskite solar cells (PSCs) can be modulated, resulting in an improved power conversion efficiency (PCE). TNPD induces crystal growth during nucleation, forms a protective film on the crystal surface, and releases micro-strain generated during film growth. Additionally, TNPD reduces defect density by screening the perovskite against oxygen and synergistically bonding with undercoordinated Sn/Pb on the surface. As a result, a high open circuit voltage and PCE of 0.85 V and 20.35% are achieved in Pb-Sn PSCs, respectively, along with improved stability.

SMALL METHODS (2023)

添加到收藏夹

Article Chemistry, Multidisciplinary

Thermally Crosslinked Hole Conductor Enables Stable Inverted Perovskite Solar Cells with 23.9% Efficiency

Cuiping Zhang et al.

Summary: The development of a new polymer hole conductor through cross-linking technology demonstrates its potential in achieving high-performance and stable inverted perovskite solar cells.

ADVANCED MATERIALS (2023)

添加到收藏夹

Article Chemistry, Multidisciplinary

Backbone Engineering Enables Highly Efficient Polymer Hole-Transporting Materials for Inverted Perovskite Solar Cells

Xin Wu et al.

Summary: In this study, a simple design strategy of polymer hole-transporting materials (HTMs) is reported, which can modulate the wettability and promote the anchoring by introducing pyridine units into the polyarylamine backbone, resulting in efficient and stable inverted perovskite solar cells (PVSCs).

ADVANCED MATERIALS (2023)

添加到收藏夹

Article Engineering, Environmental

Passivation of positively charged cationic defects in perovskite with nitrogen-donor crown ether enabling efficient perovskite solar cells

Yuxuan Yang et al.

Summary: A nitrogen-donor crown ether is developed as a positive defect passivator in metal-halide perovskite solar cells, reducing the electron trap density and improving the build-in potential. The addition of a small amount of nitrogen-donor crown ether significantly enhances the efficiency and stability of the solar cells.

CHEMICAL ENGINEERING JOURNAL (2023)

添加到收藏夹

Review Chemistry, Multidisciplinary

Rationalization of passivation strategies toward high-performance perovskite solar cells

Zhihao Zhang et al.

Summary: Lead halide perovskite solar cells have achieved significant progress in efficiency and stability. This review discusses various passivation strategies to address the challenges of defects, charge recombination, and stability in perovskite materials. The article also highlights the need for advanced characterization techniques to understand the mechanisms behind the passivation strategies, and proposes future research directions.

CHEMICAL SOCIETY REVIEWS (2023)

添加到收藏夹

Article Chemistry, Multidisciplinary

Intramolecular Noncovalent Interaction-Enabled Dopant-Free Hole-Transporting Materials for High-Performance Inverted Perovskite Solar Cells

Kun Yang et al.

Summary: Intramolecular noncovalent interactions have been utilized to develop dopant-free hole-transporting materials for high-performance perovskite solar cells. By incorporating S center dot center dot center dot O interaction into the molecular backbones, the resulting materials showed enhanced thermal properties, improved film morphology, and promising hole mobilities. Overall, this work provides a practical approach to design charge transporting layers with high intrinsic mobilities for high-performance PVSCs.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

添加到收藏夹

Article Multidisciplinary Sciences

Remote steric control for undirected meta-selective C-H activation of arenes

Boobalan Ramadoss et al.

Summary: Regioselective functionalization of arenes is a challenging problem in organic synthesis. This study presents a strategy based on remote steric control, where a roof-like ligand protects the distant para site and enables selective activation of meta carbon-hydrogen (C-H) bonds.

SCIENCE (2022)

添加到收藏夹

Review Chemistry, Physical

Design of dopant-free small molecular hole transport materials for perovskite solar cells: a viewpoint from defect passivation

Wanhai Wang et al.

Summary: This review discusses recent advances in undoped hole transport materials (HTMs) for perovskite solar cells, proposes design strategies for improving the performance of PVSCs, and examines the correlation between molecular structures and device performance and stability. The development of dopant-free small organic HTMs is considered a promising approach for achieving efficient and stable PVSCs towards commercialization.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

添加到收藏夹

Article Chemistry, Physical

A dopant-free hole transport material boosting the performance of inverted methylamine-free perovskite solar cells

Li Wan et al.

Summary: The use of PFDTS as a hole transport layer can improve the power conversion efficiency of inverted perovskite solar cells, and also exhibit better air and thermal stability compared to traditional PTAA-based devices.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

添加到收藏夹

Article Chemistry, Multidisciplinary

Hydrogen-Bonded Dopant-Free Hole Transport Material Enables Efficient and Stable Inverted Perovskite Solar Cells

Rui Li et al.

Summary: This study introduces a hydrogen-bonding association system between amide and carbonyl into the pure HTM layer of perovskite solar cells (PSCs). The hydrogen-bonding association significantly increases the hole transport mobility of the HTM, functionalizes the surface passivation to the perovskite layer, and enhances hole extraction while hindering charge recombination. The PSCs based on this hydrogen-bonding HTM achieve a champion power conversion efficiency of 21.62%.

CCS CHEMISTRY (2022)

添加到收藏夹

Article Multidisciplinary Sciences

Organometallic-functionalized interfaces for highly efficient inverted perovskite solar cells

Zhen Li et al.

Summary: Functionalizing the interfaces of multication and halide perovskite solar cells with an organometallic compound, ferrocenyl-bis-thiophene-2-carboxylate (FcTc(2)), enhances their efficiency and stability. The resulting devices exhibit high performance and stability, as demonstrated by tests and continuous operation.

SCIENCE (2022)

添加到收藏夹

Article Chemistry, Multidisciplinary

Bridging the Interfacial Contact for Improved Stability and Efficiency of Inverted Perovskite Solar Cells

Yulan Huang et al.

Summary: A strategy of interface regulation by inserting a specific small molecule 2P between perovskite and hole transport layer has been proposed in this study, which improves the interfacial contact between them, facilitating the enhancement of efficiency and stability of solar cells.

SMALL (2022)

添加到收藏夹

Review Chemistry, Multidisciplinary

Organic Hole-Transport Layers for Efficient, Stable, and Scalable Inverted Perovskite Solar Cells

Yiguo Yao et al.

Summary: This review systematically summarizes recent progress in using organic hole-transporting layers (HTLs) in inverted p-i-n perovskite solar cells (PSCs), including conductive polymers, small molecules, and self-assembled monolayers. The molecular structure, hole-transport properties, energy levels, and relevant device properties and performances of organic HTLs are analyzed. Design principles and future outlook for highly efficient organic HTLs in inverted PSCs are proposed, aiming to inspire further innovative development of novel organic HTLs for more efficient, stable, and scalable inverted PSCs.

ADVANCED MATERIALS (2022)

添加到收藏夹

Article Materials Science, Multidisciplinary

Bifunctional additive 2-amino-3-hydroxypyridine for stable and high-efficiency tin-lead perovskite solar cells

Wentao Chen et al.

Summary: In this study, AHPD was introduced as an additive to improve the performance of Sn-Pb mixed perovskite solar cells. AHPD effectively suppressed Sn2+ oxidation and reduced defects, while also retarding crystallization rate and improving carrier transport.

JOURNAL OF MATERIALS CHEMISTRY C (2022)

添加到收藏夹

Article Chemistry, Physical

Highly efficient and stable hole-transport-layer-free inverted perovskite solar cells achieved 22% efficiency through p-type molecular synergistic doping

Xianyong Zhou et al.

Summary: This study focuses on the development of hole-transport-layer-free perovskite solar cells (PSCs) using a synergistic doping strategy. The results show improved photovoltaic performance and high-quality perovskite films. The optimized devices prepared using this strategy demonstrate enhanced stability and efficiency compared to control devices.

NANO ENERGY (2022)

添加到收藏夹

Article Chemistry, Physical

Surface redox engineering of vacuum-deposited NiOx for top-performance perovskite solar cells and modules

Minyon Du et al.

Summary: A surface redox engineering (SRE) method is proposed to match vacuum-deposited NiOx with slot-die-coated perovskite films, resulting in high-performance PSCs and perovskite submodules.

JOULE (2022)

添加到收藏夹

Article Nanoscience & Nanotechnology

Nano-optical designs for high-efficiency monolithic perovskite-silicon tandem solar cells

Philipp Tockhorn et al.

Summary: Gentle sinusoidal nanotextures were designed to achieve high-efficiency perovskite-silicon solar cells, offering advantages such as reduced reflection losses, increased fabrication yield, and improved open-circuit voltage.

NATURE NANOTECHNOLOGY (2022)

添加到收藏夹

Article Chemistry, Multidisciplinary

Robust hole transport material with interface anchors enhances the efficiency and stability of inverted formamidinium-cesium perovskite solar cells with a certified efficiency of 22.3%

Rui Chen et al.

Summary: A functionalized poly(triarylamine) was used as the hole transport layer in inverted perovskite solar cells, resulting in improved efficiency and stability.

ENERGY & ENVIRONMENTAL SCIENCE (2022)

添加到收藏夹

Article Chemistry, Multidisciplinary

Optimized carrier extraction at interfaces for 23.6% efficient tin-lead perovskite solar cells

Shuaifeng Hu et al.

Summary: In this study, carrier extraction in mixed tin-lead perovskite solar cells is improved by modifying the surfaces with ethylenediammonium diiodide and glycine hydrochloride. The modified solar cells show improved performance and stability, with efficiencies of up to 23.6% and retaining over 80% of initial efficiency after 200 hours of continuous operation.

ENERGY & ENVIRONMENTAL SCIENCE (2022)

添加到收藏夹

Article Chemistry, Multidisciplinary

Engineering of dendritic dopant-free hole transport molecules: enabling ultrahigh fill factor in perovskite solar cells with optimized dendron construction

Wei Chen et al.

Summary: A novel dendritic engineering strategy was utilized to design dopant-free hole-transporting materials (HTMs) for high-performance perovskite solar cells (PVSCs). HTMs MPA-Cz-BTI and MCz-Cz-BTI exhibited improved interfacial contact with the perovskite active layer, resulting in high power conversion efficiencies and ultrahigh fill factors.

SCIENCE CHINA-CHEMISTRY (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

Buried Interfaces in Halide Perovskite Photovoltaics

Xiaoyu Yang et al.

Summary: Research has shown that losses at buried interfaces in perovskite photovoltaics are mainly caused by sub-microscale extended imperfections and lead-halide inhomogeneities, which are major obstacles to improving device performance. By utilizing passivation molecules for microstructural reconstruction, these losses can be significantly reduced, unlocking the full potential for enhancing device performance.

ADVANCED MATERIALS (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

Efficient Inverted Perovskite Solar Cells with Low Voltage Loss Achieved by a Pyridine-Based Dopant-Free Polymer Semiconductor

Xianglang Sun et al.

Summary: This study presents a new pyridine-based polymer hole-transporting material, PPY2, that can simultaneously reduce non-radiative recombination processes in inverted perovskite solar cells. By using PPY2, the research has successfully improved the performance metrics of PVSCs and achieved good long-term photostability.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

添加到收藏夹

Article Chemistry, Physical

D-A-π-A-D-type Dopant-free Hole Transport Material for Low-Cost, Efficient, and Stable Perovskite Solar Cells

Tianqi Niu et al.

Summary: The development of low-cost and efficient hole transport materials (HTMs) is crucial for commercialization of perovskite solar cells (PSCs). DTB-FL with a D-A-pi-A-D molecular design shows promise in achieving high efficiencies and stability in PSCs, as it features excellent optoelectronic properties and efficient surface passivation effects.

JOULE (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

Reducing Energy Disorder of Hole Transport Layer by Charge Transfer Complex for High Performance p-i-n Perovskite Solar Cells

Guiying Xu et al.

Summary: The study introduces a charge-transfer complex (CTC) strategy to reduce energy disorder in organic semiconductor charge-transport layers (OS-CTLs) and enhance the performance of p-i-n planar perovskite solar cells (pero-SCs).

ADVANCED MATERIALS (2021)

添加到收藏夹

Article Multidisciplinary Sciences

Perovskite solar cells with atomically coherent interlayers on SnO2 electrodes

Hanul Min et al.

Summary: By introducing an interlayer between the electron-transporting and perovskite layers in perovskite solar cells, researchers have successfully enhanced charge extraction and transport from the perovskite, leading to higher power conversion efficiency and fewer interfacial defects. The coherent interlayer allowed the fabrication of devices with a certified efficiency of 25.5%, which maintained about 90% of its initial efficiency even after continuous light exposure for 500 hours. The findings provide guidelines for designing defect-minimizing interfaces in metal halide perovskites and electron-transporting layers.

NATURE (2021)

添加到收藏夹

Article Nanoscience & Nanotechnology

A Porphyrin-Involved Benzene-1,3,5-Tricarboxamide Dendrimer (Por-BTA) as a Multifunctional Interface Material for Efficient and Stable Perovskite Solar Cells

Kuo Su et al.

Summary: Surface defects in perovskite films are a major obstacle to the efficiency and stability of perovskite solar cells due to nonradiative recombination. The use of Por-BTA as an interface material effectively passivates these defects, improving interface contact and charge transfer. PSC devices treated with Por-BTA show increased power conversion efficiency, improved stability, and enhanced performance, indicating a promising direction for the design of organic molecules in PSCs.

ACS APPLIED MATERIALS & INTERFACES (2021)

添加到收藏夹

Article Chemistry, Physical

Dopant-free dicyanofluoranthene-based hole transporting material with low cost enables efficient flexible perovskite solar cells

Xinyu Yu et al.

Summary: Low cost, highly efficient dopant-free hole transporting materials (HTMs) are essential for the commercialization of perovskite solar cells. A facile synthetic route was designed to prepare two new HTMs with low lab synthetic costs, enabling optimization of photophysical and charge transporting properties. BTF6, with metamethoxyl substitutions, exhibited significantly better device efficiency compared to BTF5, due to its matched energy levels with perovskites and enhanced hole mobility.

NANO ENERGY (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

Bonding Strength Regulates Anchoring-Based Self-Assembly Monolayers for Efficient and Stable Perovskite Solar Cells

Erpeng Li et al.

Summary: Anchoring-based self-assembly using strong anchoring groups can improve the assembly rate, density, and compactness of monolayers for perovskite solar cells, leading to enhanced charge collection and suppressed interfacial recombination. Prototype PSCs based on optimal monolayers achieved a high PCE of 21.43% and maintained 90% of initial PCE after three months, demonstrating the practical utility of the ASA strategy for scaling-up.

ADVANCED FUNCTIONAL MATERIALS (2021)

添加到收藏夹

Article Engineering, Environmental

Fluorinated Cross-linkable and Dopant-free hole transporting materials for efficient and stable perovskite solar cells

Jianchang Wu et al.

Summary: Two novel hole transporting materials with thermally cross-linkable styryl groups were developed for perovskite solar cells, enabling in situ cross-linking and smooth, solvent-resistant film formation. The fluorination approach enhanced interactions between HTM, formamidine, and lead in perovskite, leading to improved efficiency and stability, with HTM-F showing higher power conversion efficiency and better retention of initial performance after prolonged exposure to air and heat compared to the fluorine-free HTM-H.

CHEMICAL ENGINEERING JOURNAL (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary