Article
Environmental Sciences
Jianwei Fu, Lin Wang, Yuheng Chen, Deyi Yan, Huase Ou
Summary: The grafting of a phenyl-ethyl side chain with low surface energy into metal-organic frameworks through a post-synthetic modification method increased hydrophobicity and water stability. The resulting MIL-101(Fe)-EPU showed high degradation efficiency and stability in photocatalysis reactions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Energy & Fuels
Lin Hu, Wen You, Cong Xie, Haolan Zheng, Liangjing Han, Dan Zhou, Yingzhi Jin, Jiaxing Song, Xinxing Yin, Zhen Su, Yinhua Zhou, Zaifang Li
Summary: In this study, a novel strategy is proposed to passivate the detrimental interfacial chemical reaction between nonfullerene acceptors and amines. The results show that the PEI-Ph CIL-based nonfullerene OSCs exhibit higher conversion efficiencies and superior stability.
Article
Chemistry, Physical
Weixia Lan, Jialu Gu, Shiwei Wu, Yan Peng, Min Zhao, Yingjie Liao, Tao Xu, Bin Wei, Liming Ding, Furong Zhu
Summary: To improve the operational stability of organic solar cells (OSCs), it has been shown that a bilayer MoO3/antimonene hole extraction layer (HEL) is beneficial for maintaining a high built-in potential and suppressing undesired interfacial reactions, demonstrating its suitability for high-performance OSCs.
Article
Energy & Fuels
Sri Harish Kumar Paleti, Sandra Hultmark, Nicolas Ramos, Nicola Gasparini, Abdul-Hamid Emwas, Jaime Martin, Christian Mueller, Derya Baran
Summary: The formation of photoinduced traps reduces electron mobility in organic solar cells under continuous light soaking. By examining the structural stability of halogenated ITIC derivative films and the phase behavior of binary systems, it is found that the addition of a small amount of ITIC-4F as a third component can prevent the loss of ITIC-4Cl crystalline phase.
Article
Chemistry, Multidisciplinary
Jingyang Xiao, Xiao'e Jia, Chunhui Duan, Fei Huang, Hin-Lap Yip, Yong Cao
Summary: A novel fluorinated polythiophene derivative, P4T2F-HD, is introduced to significantly improve the morphology of bulk heterojunction active layers in organic solar cells. By optimizing the film morphology and interface structure, a record power conversion efficiency of 13.65% for polythiophene-based OSCs was achieved through the use of P4T2F-HD:Y6-BO films processed from nonhalogenated solvents.
ADVANCED MATERIALS
(2021)
Article
Energy & Fuels
Kuan-Yun Chiu, Pei-Hsuan Lo, Yi-Ru Lin, Ngoc Khanh Tran Ho, Yan-Jia Liao, Hsin-Fei Meng, Yu-Chiang Chao, Yu-Yu Huang, Sheng-Fu Horng, Hsiao-Wen Zan
Summary: This study investigates the stability of ternary organic photovoltaic materials by using UV filters to improve stability and simulating the decay process under visible sunlight. The results show that the devices enter a relatively stable state after blue irradiation, in contrast to the continuous decay under UV.
Article
Chemistry, Applied
So Hyun Park, Sungmin Park, Keun Jun Lee, Jai Kyeong Kim, Hae Jung Son
Summary: The development of new interlayer polymers PDMA(N)EMA and PDMA(N-O)EMA effectively reduced the work function at the interface with the active layer, leading to enhanced electron collection and improved power conversion efficiency of nonfullerene acceptor-based OPV devices. Compared to PEIE, PDMA(N)EMA formed a stable interface with ITIC, resulting in increased VOC and improved device stability at elevated temperatures. This study emphasizes the importance of designing appropriate interlayer materials for achieving stable and high-efficiency nonfullerene-based OPVs.
Article
Chemistry, Multidisciplinary
Xinbo Wen, Yu Zhang, Guojing Xie, Rodger Rausch, Ningning Tang, Nan Zheng, Linlin Liu, Frank Wuerthner, Zengqi Xie
Summary: A new electron transporting layer composed of PBI-2P is successfully applied to nonfullerene organic solar cells, resulting in improved device stability and efficiency.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Zongwen Ma, Yiman Dong, Yi-Jia Su, Runnan Yu, Huaizhi Gao, Yongshuai Gong, Ze-Ye Lee, Chunhe Yang, Chain-Shu Hsu, Zhan'ao Tan
Summary: The commercialization of organic solar cells (OSCs) is limited by power conversion efficiencies (PCEs) and device stability. In this study, a crosslinker called DTODF-4F was designed to enhance the morphological stabilization of the film, leading to improved efficiency and stability of OSCs.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Chemistry, Physical
Yiwen Wang, Jinho Lee, Xueyan Hou, Chiara Labanti, Jun Yan, Eva Mazzolini, Amber Parhar, Jenny Nelson, Ji-Seon Kim, Zhe Li
Summary: While organic solar cells based on nonfullerene acceptors have achieved significant breakthroughs in their device performance, achieving long-term stability remains a major challenge for commercialization due to the lack of understanding of their degradation mechanisms and design rules for enhancing stability.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Kaihu Xian, Shengnan Zhang, Ye Xu, Junwei Liu, Kangkang Zhou, Zhongxiang Peng, Mingfei Li, Wenchao Zhao, Yu Chen, Zhuping Fei, Jianhui Hou, Yanhou Geng, Long Ye
Summary: By precisely controlling the acceptor aggregation, the performance and thermal stability of non-fullerene organic photovoltaics (OPVs) can be improved, resulting in higher efficiency and longer operational lifetime.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Chemistry, Physical
Joel Troughton, Sebastian Neubert, Nicola Gasparini, Diego Rosas Villalva, Jules Bertrandie, Akmaral Seitkhan, Sri Harish Kumar Paleti, Anirudh Sharma, Michele De Bastiani, Erkan Aydin, Thomas D. Anthopoulos, Stefaan De Wolf, Rutger Schlatmann, Derya Baran
Summary: Monolithically stacked tandem solar cells offer the opportunity to absorb more solar radiation with reduced energy loss, with carefully adjusted bandgaps to avoid competition for photons. Two-terminal tandem solar cells using wide bandgap amorphous silicon and narrow bandgap NFA bulk-heterojunction show high power conversion efficiencies exceeding 15%, with interface engineering allowing for stability across a wide range of light intensities. The addition of an inorganic silicon subcell enhances operational stability and reduces light-stress on the bulk heterojunction, addressing a longstanding challenge in organic photovoltaic research.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Christina Cheng, Stephen Wong, Garrett LeCroy, Sebastian Schneider, Enrique Gomez, Michael F. Toney, Alberto Salleo
Summary: The performance of nonfullerene-based organic solar cells is influenced by the morphology of the donor:acceptor blend, which is controlled by the composition. However, it is challenging to identify morphological design rules due to the complex relationship between composition-dependent phase behavior and device properties. In this study, the authors establish a direct link between PM6:Y6 film morphology and device properties by combining X-ray scattering and photocurrent spectroscopy. The results reveal that the charge transfer state at the amorphous-PM6:crystalline-Y6 interfaces controls the open-circuit voltage.
ADVANCED ENERGY MATERIALS
(2023)
Review
Chemistry, Physical
Dan Zhou, Jianru Wang, Zhentian Xu, Haitao Xu, Jianwei Quan, Jiawei Deng, Yubing Li, Yongfen Tong, Bin Hu, Lie Chen
Summary: Organic solar cells (OSCs) have made significant progress in recent years due to their low cost, lightweight, mechanical flexibility, and printable fabrication. The nonfullerene acceptors (NFAs) play an important role in widening the absorption range, enhancing stability, and increasing the power conversion efficiency (PCE) of OSCs. As a result, NFAs have attracted increasing attention for their inherent advantages. Currently, the PCE of OSCs has been elevated to over 20%. Small molecule and polymer NFAs are crucial in OSCs.
Article
Energy & Fuels
Wei Gao, Francis R. Lin, Alex K-Y Jen
Summary: This article focuses on the development of near-infrared nonfullerene acceptors (NFAs) in organic solar cells (OSCs), discussing their molecular design strategies, structure-property-performance relationships, and the potential in fabricating ternary and tandem OSCs. Outlooks for future design of NIR NFAs are also provided, considering material stability and production cost based on current knowledge, in hope of aiding the further development of the field.
Review
Chemistry, Multidisciplinary
Yahui Liu, Bowen Li, Chang-Qi Ma, Fei Huang, Guitao Feng, Hongzheng Chen, Jianhui Hou, Lingpeng Yan, Qingya Wei, Qun Luo, Qinye Bao, Wei Ma, Wei Liu, Weiwei Li, Xiangjian Wan, Xiaotian Hu, Yanchun Han, Yaowen Li, Yinhua Zhou, Yingping Zou, Yiwang Chen, Yongfang Li, Yongsheng Chen, Zheng Tang, Zhicheng Hu, Zhi-Guo Zhang, Zhishan Bo
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)
Article
Materials Science, Multidisciplinary
Sixing Xiong, Jing Li, Jiali Peng, Xinyun Dong, Fei Qin, Wen Wang, Lulu Sun, Yalun Xu, Qianqian Lin, Yinhua Zhou
Summary: High-performance organic near-infrared (NIR) photodetectors with a multilayered structure fabricated by a water transfer printing strategy have been reported, achieving extremely low noise current and a specific detectivity approaching 10(12) Jones at 860 nm wavelength. These photodetectors exhibit a large linear dynamic range and fast response, suggesting potential for high-performance organic photodetectors.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Jintao Huang, Congwu Ge, Fei Qin, Jianwei Zhang, Xiaodi Yang, Ye Zou, Yinhua Zhou, Wei-Shi Li, Xike Gao
Summary: A series of electron-deficient conjugated polymers were developed as effective ETLs for inverted perovskite solar cells, demonstrating better photovoltaic performance and stability compared to devices based on PCBM ETL. These polymer-based devices showed optimized electron extraction and transport properties, resulting in higher power conversion efficiency and improved stability.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Sixing Xiong, Kenjiro Fukuda, Shinyoung Lee, Kyohei Nakano, Xinyun Dong, Tomoyuki Yokota, Keisuke Tajima, Yinhua Zhou, Takao Someya
Summary: In this study, highly air-stable and ultrathin organic photovoltaics (OPVs) with high efficiency and outstanding power-per-weight ratio are realized. The suppression of element diffusion enables stable ultrathin OPVs with excellent deformability.
Article
Chemistry, Physical
Jintao Huang, Congwu Ge, Fei Qin, Ye Zou, Yinhua Zhou, Wei-Shi Li, Xike Gao
Summary: In this study, two dithienochrysene diimide (DTCDI)-based polymers were synthesized as electron transport layers (ETLs) for inverted perovskite solar cells (PSCs). It was found that the fluorinated polymer exhibited lower unoccupied molecular orbital energy levels and superior electron transport ability compared to the non-fluorinated polymer. The devices using the fluorinated polymer as the ETL showed better passivation effect, smaller charge transfer resistance, higher power conversion efficiency, and improved stability.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Cong Xie, Yang Liu, Wanxia Wei, Yinhua Zhou
Summary: This study reports a strategy to improve the upscaling efficiency of flexible organic solar cells by switching electrode design to avoid the negative effects of the high surface roughness of silver nanowire electrodes. The mechanical robustness of the nanowires is enhanced by introducing a cross-linked poly(sodium 4-styrenesulfonate) layer, and a transparent film is fabricated as the top electrode using water transfer printing.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yunhao Cai, Cong Xie, Qian Li, Chunhui Liu, Jiaxin Gao, Min Hun Jee, Jiawei Qiao, Yun Li, Jiali Song, Xiaotao Hao, Han Young Woo, Zheng Tang, Yinhua Zhou, Chunfeng Zhang, Hui Huang, Yanming Sun
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)
Article
Chemistry, Multidisciplinary
Kai Feng, Linya Chen, Jingyu Cheng, Wanxia Wei, Yang Liu, Cong Xie, Xin Lu, Honggang Gu, Sixing Xiong, Yinhua Zhou
Summary: Layer-by-layer (LbL) coating is a widely used method for nonfullerene active layer films in organic solar cells. However, the vertical compositional distribution of the LbL-coated active layer, particularly at the buried bottom surface, is unclear. This study shows that the LbL active layer is a vertical donor-acceptor mixture without a pure polymer donor layer at the bottom surface. The study also reveals that inserting thin polymer layers at the bottom surface significantly deteriorates the device's performance.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Junwei Xiang, Chuanzhou Han, Jianhang Qi, Yanjie Cheng, Kai Chen, Yongming Ma, Jiayu Xie, Yue Hu, Anyi Mei, Yinhua Zhou, Hongwei Han
Summary: Printable mesoscopic perovskite solar cells (p-MPSCs) have gained attention due to their low cost and potential for mass production. However, their low open-circuit voltage (V-OC) limits their power conversion efficiency (PCE). In this study, a polymeric Lewis base polysuccinimide (PSI) was added to the perovskite precursor solution as an additive to improve perovskite crystallization, passivate defects, and enhance PCE. The fabricated p-MPSCs achieved a champion device with a PCE of 18.84% and an increased V-OC from 973 to 1030 mV, offering a new strategy for efficient p-MPSC fabrication.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Shisong Nie, Fei Qin, Yanfeng Liu, Chufeng Qiu, Yingzhi Jin, Hongmei Wang, Lichun Liu, Lin Hu, Zhen Su, Jiaxing Song, Xinxing Yin, Zhiguang Xu, Yuyuan Yao, Hao Wang, Yinhua Zhou, Zaifang Li
Summary: In this article, a plastic electrode made of traditional conducting polymer poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and plastic substrate polyethersulfone (PES) is prepared. The completed electrode, named HC-PEDOT:PSS, treated with 80% concentrated sulfuric acid (H2SO4) exhibits high electrical conductivity and transmittance. The regular arrangement of PEDOT molecules contributes to the high conductivity, as confirmed by X-ray diffraction characterization. The HC-PEDOT:PSS electrode shows promise for all-plastic solar cells and ITO-free organic solar cells.
Article
Chemistry, Physical
Jianping Chen, Pei Jiang, Yang Liu, Xinyun Dong, Jingyu Cheng, Fei Qin, Youyu Jiang, Yinhua Zhou
Summary: In this study, an amine-free precursor of ZnO was introduced, which can suppress the chemical dedoping of PEDOT:PSS films. The PEDOT:PSS films coated with this precursor exhibited higher optical transparency and electrical conductivity compared to films made with traditional ZnO precursors.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Guoping Li, Fei Qin, Robert M. Jacobberger, Subhrangsu Mukherjee, Leighton O. Jones, Ryan M. Young, Robert M. Pankow, Brendan P. Kerwin, Lucas Q. Flagg, Ding Zheng, Liang-Wen Feng, Kevin L. Kohlstedt, Vinod K. Sangwan, Mark C. Hersam, George C. Schatz, Dean M. Delongchamp, Michael R. Wasielewski, Yinhua Zhou, Antonio Facchetti, Tobin J. Marks
Summary: In this study, the influence of the symmetry of non-fullerene acceptors (NFAs) on the performance of bulk-heterojunction (BHJ) polymer solar cells (PSCs) is investigated. The research finds that BHJ PSCs using symmetric NFAs exhibit higher performance compared to those using asymmetric NFAs. Analysis reveals the reasons behind the lower performance of asymmetric NFAs.
Article
Energy & Fuels
Josua Wachsmuth, Andreas Distler, Chao Liu, Thomas Heumueller, Yang Liu, Catherine M. Aitchison, Alina Hauser, Michael Rossier, Amelie Robitaille, Marc-Antoine Llobel, Pierre-Olivier Morin, Anais Thepaut, Charline Arrive, Iain Mcculloch, Yinhua Zhou, Christoph J. Brabec, Hans-Joachim Egelhaaf
Summary: This work focuses on transferring the latest-generation organic photovoltaics (OPV) from small-area lab cells to fully solution-processed modules compatible with industrial roll-to-roll (R2R) printing. Through material selection, process optimization, and long-term stability investigations, the device area is scaled up by a factor of >100, resulting in a semitransparent OPV module with 10.8% power conversion efficiency (PCE) on 10.2 cm(2) active area, among the highest performances for semitransparent, fully solution-processed OPV modules. All developments meet the requirements for industrial R2R printing, ensuring the scalability and transferability to large-scale production of the optimized layer stack and fabrication process.
Article
Materials Science, Multidisciplinary
Tianyi Liu, Hui Zheng, Xinyu Yu, Shengwei Shi, Yinhua Zhou, Zhong'an Li
Summary: In recent years, the innovative design of small-molecule non-fullerene acceptors (NFAs), particularly fused ring electron acceptors (FREAs), has significantly advanced the development of organic solar cells (OSCs), achieving power conversion efficiencies (PCEs) higher than 19%. However, compared to inorganic and perovskite solar cells, OSCs still exhibit a certain efficiency gap, mainly due to the large energy loss (E-loss). Recently, breaking the symmetry of FREAs has emerged as an effective molecular design strategy to greatly reduce the E-loss to a remarkably low value of 0.44 eV. In this perspective, we summarize the recent progress in asymmetric FREAs and explore the relationship between asymmetric molecular structure, E-loss, and device performance, providing molecular insights for future development of high-performance asymmetric NFAs.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Xinyun Dong, Xianmin Zhou, Yang Liu, Sixing Xiong, Jingyu Cheng, Youyu Jiang, Yinhua Zhou
Summary: In this study, a solvent exchange method was used to prepare alcohol-processed PEDOT:PSS, which showed good wetting ability and high electronic conductivity. The work function of the obtained e-PEDOT:PSS was tuned by adding an alcohol-based fluorinated formulation. The 2-in-1 electrodes fabricated using e-PEDOT:PSS showed an efficiency of 14.02%.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
