Article
Chemistry, Physical
Dahyun Jeong, Jin-Woo Lee, Seungjin Lee, Geon-U Kim, Hyesu Jeon, Seoyoung Kim, Changduk Yang, Changyeon Lee, Bumjoon J. Kim
Summary: By designing a series of chlorinated thiazole-incorporated polythiophene terpolymers, the aggregation properties were modulated, leading to high-performance organic solar cells. Among the terpolymers, PTz-F70 showed the best performance with the highest power conversion efficiency. This study highlights the importance of controlling the aggregation property of polythiophenes for achieving high-performance polythiophene-based organic solar cells.
Article
Chemistry, Applied
Xiaohua Zhai, Xiangkun Wang, Kun Zhu, Caiyun Gao, Yan He, Liangmin Yu, Mingliang Sun
Summary: This study utilized a random copolymerization approach to construct terpolymers that outperformed binary copolymers in non-fullerene polymer solar cells. By using these terpolymers, higher photovoltaic performance could be achieved without the use of additives, maintaining a better balance between power conversion efficiencies and average visible transmittance in ST-PSCs.
Article
Chemistry, Multidisciplinary
Junwei Liu, Zhihua Zhou, Yuping Gao, Yin Wu, Jingjing Wang, Haojin Li, Qian Wang, Kangkang Zhou, Kaihu Xian, Yu Chen, Wenchao Zhao, Fei Zhang, Hang Yin, Yongsheng Liu, Kui Zhao, Jinyue Yan, Long Ye
Summary: This study introduces a novel polymer synergy strategy to develop versatile dopant-free polymer hole transport materials (HTMs) for quantum dot/perovskite solar cells and photodetectors. With this strategy, the optical, electrical, and aggregation properties of the HTMs can be modulated, resulting in improved performance of the electronic devices. The developed HTMs exhibit a clear orientational transition and significantly enhance the photovoltaic and photodetection performance of the devices.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Hongbin Chen, Zhe Zhang, Peiran Wang, Yunxin Zhang, Kangqiao Ma, Yi Lin, Tainan Duan, Tengfei He, Zaifei Ma, Guankui Long, Chenxi Li, Bin Kan, Zhaoyang Yao, Xiangjian Wan, Yongsheng Chen
Summary: Compared to linear NFAs, multi-dimensional NFAs with extended conjugated structures in multiple directions show potential for improving absorption, molecular packing, and charge transport dynamics in organic solar cells. In this study, a conjugated-skeleton connection mode is developed, extending linear molecular structures towards three-dimensions. The resulting 3D NFAs exhibit low reorganization energy, fibrillar network film morphology, enhanced charge transport behavior, and improved stability. By optimizing the molecular geometry using fluorine-induced noncovalent conformational locks, a remarkable efficiency of 17.05% is achieved in binary bulk-heterojunction OSCs based on CH8-1, which represents the highest value for multi-dimensional acceptors to date. This work paves the way for further molecular structural optimization of state-of-the-art NFAs.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Wenbo Liu, Yiming Ma, Zongrui Wang, Zhao Mu, Weibo Gao, Weijun Fan, Wei-Shi Li, Qichun Zhang
Summary: By amending the conjugated frameworks in existing organic semiconductors, a suitable HTL with improved mobility of the polymer was achieved without greatly affecting other important electrical properties. This method allowed for the fabrication of a PSC with high fill factor and efficiency, proving the feasibility of structural engineering to achieve desired functional materials for practical devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Applied
Shanshan Ding, Yujun Cheng, Shaorong Huang, Feiyan Wu, Hui Guo, Qiannan He, Jinliang Liu, Xuexiang Huang, Lie Chen
Summary: By introducing ester group into new terpolymers, this study achieved a high power conversion efficiency under non-halogenated solvent treatment at room temperature. These polymers exhibit weaker self-aggregation properties and have the potential to be promising candidates for high performance environmental-friendly solvent processed solar cells.
Article
Nanoscience & Nanotechnology
Zilong Zhang, Lusheng Liang, Longhui Deng, Lu Ren, Nan Zhao, Jianhua Huang, Yaming Yu, Peng Gao
Summary: This study introduces two novel donor-acceptor conjugated polymers with excellent hole mobility and superior PCE for the application in dopant-free PSCs, providing a new approach for improving device performance.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Mingwei An, Qingqing Bai, Sang Young Jeong, Jianwei Ding, Chaoyue Zhao, Bin Liu, Qiming Liang, Yimei Wang, Guangye Zhang, Han Young Woo, Xiaohui Qiu, Li Niu, Xugang Guo, Huiliang Sun
Summary: This study designs and synthesizes a new thiophene derivative, FETVT, and incorporates it into a polymer to form a high-performance polythiophene derivative PFETVT-T, which exhibits excellent compatibility with the acceptor L15 and achieves a record PCE of 11.81%. Remarkably, a ternary blend design further boosts the PCE of PFETVT-T to over 16%. These findings offer hope for high-performance, stable, and cost-effective polymer solar cells.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Kashif Hussain, Waldemar Kaiser, Alessio Gagliardi
Summary: Interface engineering, especially the control of disorder at the D:A interface, can significantly improve the performance of organic solar cells. Disorder at the D:A interface plays a crucial role in enhancing photocurrent and fill factor, while disorder at the extraction layer is more critical in controlling the open-circuit voltage.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Energy & Fuels
Francis Feaugas, Tommaso Nicolini, Gilles H. Roche, Lionel Hirsch, Olivier J. Dautel, Guillaume Wantz
Summary: This study reports a new hole transporting layer for polymer solar cells, which is based on the same polymer as the one used in the bulk heterojunction and forms a homojunction by doping. Through optimization of the doping concentration, the resulting solar cells exhibit comparable power conversion efficiency to the widely used PEDOT:PSS and improved stability. This strategy provides a new direction for the development of deep-lying work function hole transporting layers and future BHJ materials.
Article
Materials Science, Multidisciplinary
Lifei He, Yuyan Zhang, Yuefang Wei, Yaohang Cai, Jing Zhang, Peng Wang
Summary: This study demonstrates the efficient synthesis of a new semiconducting polymer (p-O5H-E-POZ-E) through direct arylation polycondensation, which is then used in the hole transport layer of perovskite solar cells, achieving high efficiency and thermal stability.
Article
Chemistry, Physical
Jin-Woo Lee, Nayoun Choi, Dongjun Kim, Tan Ngoc-Lan Phan, Hyunbum Kang, Taek-Soo Kim, Bumjoon J. Kim
Summary: By developing new naphthalene dimide-based polymer acceptors, we have achieved superior power conversion efficiency and mechanical robustness of all-polymer solar cells compared to devices based on N2200. The enhanced charge generation and transport abilities of the new polymer acceptors contribute to the improved performance, with high electron mobility and optimal domain size and purity. Furthermore, the blend of PBDB-T:PNDIHD/DT-0.41 exhibits excellent mechanical robustness, with a high initial power conversion efficiency maintained even after bending 1500 times.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Physical
Yanqi Luo, Ramesh Kumar Chitumalla, So-Yeon Ham, Deniz N. Cakan, Taewoo Kim, Sanghyun Paek, Ying Shirley Meng, Joonkyung Jang, David P. Fenning, Min-cheol Kim
Summary: This study presents a simple approach to enhance the performance and stability of hybrid organic-inorganic perovskite solar cells (PSCs) by substituting the carbon atom in the common hole transport material with silicon. The modified material leads to increased hole mobility, improved charge extraction, and enhanced stability by blocking metal ion migration.
ACS ENERGY LETTERS
(2023)
Review
Chemistry, Multidisciplinary
Afsaneh Farokhi, Hashem Shahroosvand, Gabriele Delle Monache, Melanie Pilkington, Mohammad Khaja Nazeeruddin
Summary: In recent years, there has been significant progress in the research of third-generation solar cells, particularly in the field of perovskite solar cells. Researchers are working towards improving the efficiency and stability of solar cells by optimizing the properties of the materials used and addressing cost and environmental concerns. This article provides a detailed summary of the most promising compounds and methodologies, aiming to guide the discovery of efficient TPA derivatives for commercial applications.
CHEMICAL SOCIETY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Yogesh S. Tingare, Chaochin Su, Ja-Hon Lin, Yi-Chun Hsieh, Hong-Jia Lin, Ya-Chun Hsu, Meng-Che Li, Guan-Lin Chen, Kai-Wei Tseng, Yi-Hsuan Yang, Leeyih Wang, Hsinhan Tsai, Wanyi Nie, Wen-Ren Li
Summary: Interfaces and hole-transporting materials are crucial for the performance of perovskite solar cells. This study introduces a new class of benzimidazole-based small molecules as hole-transporting materials, enabling high-efficiency mixed-cation mixed-halide perovskite solar cells.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Min Zhang, Min Zeng, Xiong Deng, Zhijie Zhou, Xiaoxiao Tan, Songting Tan, Bin Zhao, Jianqi Zhang, Yingping Zou
Summary: In this study, ternary organic solar cells using PM6:Y6:BTIC-Cl blend film demonstrated an impressive power conversion efficiency of 16.60%, with enhanced charge transfer properties and morphology compared to binary and other ternary blend films. The high-lying LUMO energy level of the MBG small-molecule acceptor played a crucial role in achieving superior performance in ternary OSCs.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Zhining Sun, Rigumula Wu, Bin Zhao, Rilee Zeinert, Peter Chien, Mingxu You
Summary: A RNA-based fluorescent sensor has been developed for live-cell imaging of (p)ppGpp, allowing direct monitoring of cellular accumulation and dynamics of (p)ppGpp levels. These sensors provide unprecedented information on cell-to-cell variation and can be broadly adapted to study bacterial stringent response.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Environmental
Hailu Liu, Linqiao Wang, Heng Liu, Min Guan, Chun-Jen Su, U-Ser Jeng, Bin Zhao, Chao Weng, Kuiyi You, Xinhui Lu
Summary: The study demonstrates that ternary polymerization is an efficient strategy to obtain high-performance all-polymer solar cells with green-solvent processing.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Applied
Wenjing Xu, Miao Zi, Min Zhang, Ruofei Hao, Ping Shen, Bin Zhao, Songting Tan
Summary: By changing the ratio of side chains in the donor unit, the performance of the photoactive layer in polymer solar cells can be improved, leading to higher device conversion efficiency.
Article
Chemistry, Organic
Cheng Li, Huawen Huang, Fuhong Xiao, Bin Zhao, Guo-Jun Deng
Summary: The study describes a practical strategy for skeletal diversification through combining selective C-H cleavage with C-C cleavage in a tandem reaction. Rhodium(iii)-catalyzed redox-neutral reaction of aryl oximes and internal alkynes generates novel N-(2-cyanoaryl) indanone imines with good yields, regioselectivities and atom economy, producing water as the only by-product. Experimental and theoretical studies offer mechanistic insights into this transformation, achieving an attractive integration of C-H activation with C-C activation in oxime transformation.
ORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Polymer Science
Linqiao Wang, Yaoqiong Chen, Wuxi Tao, Ke Wang, Zeyan Peng, Xiaolong Zheng, Changhao Xiang, Jian Zhang, Meihua Huang, Bin Zhao
Summary: In this study, two polymerized naphthalimide derivatives, N-TBHOB and N-DBH, were synthesized and their excellent performance as electron-transport layers (ETLs) in inverted organic solar cells (i-OSCs) was demonstrated. N-TBHOB, with a reticulated structure, exhibited superior performance in electron extraction, electron transport, thickness tolerance, and carrier recombination compared to N-DBH. The i-OSCs based on N-TBHOB achieved high power conversion efficiencies (PCEs) of 10.72% and 10.03% under different thicknesses, indicating its better thickness tolerance. N-TBHOB also showed competitive performance in nonfullerene i-OSCs. Overall, this study provides an effective strategy for preparing high-performance i-OSCs by combining conjugated and nonconjugated units with a reticulated structure.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Miao Zi, Xiaoyuan Chen, Songting Tan, Chao Weng, Bin Zhao
Summary: Interface engineering is a method to improve the performance of organic solar cells. In this study, a perylene-diimide derivative (PDINOH) was synthesized and used as the cathode interface layer, resulting in better electron transport and interface contact. The introduction of methanol treatment to the active layer further enhanced the power conversion efficiency. PDINOH showed thickness-insensitivity and improved the photovoltaic performance of different systems.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Min Zhang, Yafeng Liu, Min Zeng, Bin Zhao, Songting Tan
Summary: Due to enhanced intermolecular interaction, aromatically chlorinated polymers have been important for the molecular design and innovation of pi-conjugated polymers for efficient organic solar cells (OSCs). Two structurally similar copolymer donors based on benzodithiophene (BDT) with and without chlorine atoms were designed and synthesized. The chlorinated copolymer showed significantly enhanced photocurrent and fill factor as well as hole/electron mobility, resulting in a higher power conversion efficiency compared to the nonchlorinated copolymer.
Article
Energy & Fuels
Min Zhang, Hailu Liu, Yafeng Liu, Min Zeng, Bin Zhao, Songting Tan
Summary: Two new two-dimensional conjugated polymers (Z3 and Z4) with different side chains were synthesized and used as donor materials for organic solar cells (OSCs). The side chains in Z4 provided suitable absorption spectrum and morphology, while the extra thienyl in the side chains of Z3 led to stronger p-p interaction, excessive molecular aggregation, and lower JSC and FF. Blending Z4 with the acceptor Y6 resulted in a power conversion efficiency of 15.12%, which was almost 30% higher than that of Z3-based devices (10.68%). Thus, side-chain modification is an effective strategy for controlling the aggregation of 2D-conjugated polymeric donors in OSCs.
Article
Chemistry, Physical
Honglin Tang, Junhua Ning, Ke Wang, Heng Liu, Xinhui Lu, Songting Tan, Meihua Huang, Bin Zhao
Summary: Two polymer donors, PSe-BO and PSe-HD, were designed and synthesized with DTBSe as electron-deficient units, and the effects of alkylthiophene side chains on their photophysical properties and photovoltaic performance were studied. The results showed that PSe-HD exhibited better absorption spectrum and molecular orientation compared to PSe-BO, resulting in higher charge mobility and improved photovoltaic parameters. Consequently, the polymer organic solar cell based on PSe-HD achieved a higher power conversion efficiency of 14.85%. This study provides an efficient strategy for designing polymer donors through the introduction of DTBSe and side-chain engineering.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Jiaxun Peng, Ke Wang, Mengjie Li, Zeyan Peng, Hailu Liu, Meihua Huang, Bin Zhao
Summary: Two novel polymer acceptors with an A-A type backbone were designed and synthesized, which showed better solubility and molecular interactions and achieved higher efficiency for all-polymer solar cells prepared with nonhalogenated solvents.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Cheng Li, Bin Zhao, Guojiang Mao, Guo-Jun Deng
Summary: In this study, a Rh(iii)-catalyzed intermolecular regioselective dearomative spirocyclization of 2-aryl-3-nitrosoindoles with alkynes was developed, leading to the redox-neutral and atom-economic construction of spiroindoline-3-one oximes bearing a C2 spirocyclic quaternary carbon center under mild conditions. Both aryl alkyl alkynes and 1,3-diynes generally reacted smoothly in the reaction with moderate to good regioselectivities. DFT calculations provided detailed insights into the reaction mechanism and explained the origins of the regioselectivities.
CHEMICAL COMMUNICATIONS
(2023)
Article
Energy & Fuels
Min Zhang, Yafeng Liu, Min Zeng, Bin Zhao, Songting Tan
Summary: Due to enhanced intermolecular interaction, aromatically chlorinated polymers play a crucial role in the molecular design and innovation of pi-conjugated polymers for efficient organic solar cells (OSCs). In this study, two structurally similar copolymers (Z1 and Z2) were designed and synthesized, based on benzodithiophene (BDT) with alkylbenzene conjugated side chains, one without chlorine atoms and the other with chlorine atoms. The chlorine substitution in Z2 led to enhanced pi-pi stacking and favorable morphology, resulting in significantly improved photocurrent, fill factor, and mobility compared to Z1. The chlorinated copolymer Z2 exhibited a higher power conversion efficiency (PCE) of 15.11% compared to the nonchlorinated copolymer Z1's PCE of 12.03%. These findings provide valuable insights into the role of chlorinated alkylphenyl side chains in the design of new conjugated polymers for enhanced OSC performance.
Correction
Polymer Science
Yunfei Gao, Bin Zhao, Deshun Yin, Lili Yuan
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Physical
Ming Guan, Wuxi Tao, Linyong Xu, Youmei Qin, Jianqi Zhang, Songting Tan, Meihua Huang, Bin Zhao
Summary: In this study, an asymmetric small molecule donor, TTBT-R, was used to fabricate high-performance ternary organic solar cells (OSCs). The optimized morphology of the ternary blend film resulted in balanced charge transport and improved power conversion efficiency through tuning molecule packing, energy levels, and absorption spectrum.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
