Article
Chemistry, Physical
Ren Hagio, Hiroaki Benten, Yunju Na, Zhiyuan Liang, Naoki Oyaizu, Junya Suzuki, Shota Kubota, Min-Cherl Jung, Hirotaka Kojima, Masakazu Nakamura
Summary: One of the key factors that improve or limit the fill factors (FFs) of all-polymer blend solar cells is the behavior of charge-carrier extraction and recombination. In this study, we examined this behavior and found that a well-ordered local structure formed by chain aggregation of both the polymer donor and acceptor is preferred for suppressing bimolecular recombination and achieving high FFs. This research provides guidance for future efforts in developing thickness-tolerant all-polymer blend solar cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Zhiyuan Liang, Hiroaki Benten, Ren Hagio, Yongyoon Cho, Manish Pandey, Masakazu Nakamura
Summary: Tuning open-circuit voltage (VOC) and fill factor (FF) is crucial for improving the performance of ternary blend organic solar cells. This study investigates the effects of blend morphology and energy level shift on VOC and FF in all-polymer solar cells. The results show that a pseudo-binary blend morphology with mixed donor domains and an acceptor domain is necessary for achieving broad tunability of VOC and composition tolerance of FF in ternary all-polymer solar cells.
ADVANCED ENERGY MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Yuji Yamagata, Hiroaki Benten, Toshiki Kawanishi, Masakazu Nakamura
Summary: This study investigated the role of trace amounts of solvent additives in the performance improvement of all-polymer blend solar cells using PC-AFM. The results showed that the addition of solvents can increase photocurrent by improving charge transport efficiency. The study elucidated the interplay between the additive-mediated microstructures of the polymer:polymer blends and their device performances.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Kai Wang, Sheng Dong, Kai Zhang, Zheng Li, Jun Huang, Ming Wang
Summary: By introducing a cheap and commercially available small molecule, EPPDI, as a solid additive to the active layer of N2200-based all polymer solar cells, improvements in D-A nano-scale morphology and trap density reduction were achieved, leading to a significant enhancement in photovoltaic performance.
ORGANIC ELECTRONICS
(2021)
Article
Energy & Fuels
Xingpeng Liu, Sanshan Du, Zhijie Fu, Can Chen, Junfeng Tong, Jianfeng Li, Nan Zheng, Rongling Zhang, Yangjun Xia
Summary: The study utilized a ternary polymer donor and organic small molecule acceptor, introducing a third component PC71BM to enhance the morphology of the photoactive layer and improve device performance. The introduction of PC71BM not only improved morphology and promoted more efficient exciton transport, but also influenced molecular arrangement for better crystallization performance.
Article
Materials Science, Multidisciplinary
Jiali Song, Chao Li, Jiawei Qiao, Chunhui Liu, Yunhao Cai, Yun Li, Jiaxin Gao, Min Hun Jee, Xiaotao Hao, Han Young Woo, Zheng Tang, He Yan, Yanming Sun
Summary: Efficient ternary all-polymer solar cells were fabricated by introducing a fluorinated small molecular acceptor-derived polymer acceptor named PYF-T-o to improve the molecular crystallinity. The ternary all-PSC exhibited improved short-circuit current density and fill factor, resulting in an impressive efficiency of 18.15% (certified as 17.73%). Large-area and eco-friendly ternary all-PSCs were also obtained, showing great potential for future organic photovoltaic applications.
Article
Chemistry, Multidisciplinary
Mengyun Jiang, Hairui Bai, Hongfu Zhi, Lu Yan, Han Young Woo, Lijia Tong, Jinliang Wang, Fujun Zhang, Qiaoshi An
Summary: In this study, ternary small-molecule organic solar cells were fabricated by incorporating a small molecule acceptor Y7 as a morphology modulator into a B1:BO-4Cl matrix, enabling fine-tuning of molecular arrangement to facilitate charge extraction and achieving top-ranked power conversion efficiency.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Chemistry, Physical
Yan Wang, Han Yu, Xin Wu, Dan Zhao, Shoufeng Zhang, Xinhui Zou, Bo Li, Danpeng Gao, Zhen Li, Xinxin Xia, Xiankai Chen, Xinhui Lu, He Yan, Chu-Chen Chueh, Alex K-Y Jen, Zonglong Zhu
Summary: This study presents a combined homo hydrocarbon solvent and sequential deposition strategy to improve the fill factor and power conversion efficiency of all-polymer solar cells. The results show that this approach leads to the formation of an ideal film structure and enhances the exciton diffusion dynamics and carrier mobilities, resulting in a higher fill factor. The findings provide a promising strategy for the development and manufacturing of highly efficient and stable all-polymer solar cells.
ADVANCED ENERGY MATERIALS
(2022)
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
Energy & Fuels
Shaorong Huang, Peiqing Cong, Zuoji Liu, Feiyan Wu, Chenxiang Gong, Lie Chen, Yiwang Chen
Summary: The PCl-Si-based device has a power conversion efficiency of 9.25% with a moderate fill factor of 67.86%, while the PM6:PCl-based device achieves a power conversion efficiency of 10.02% with a higher fill factor of 70.25%.
Article
Polymer Science
Saeah Kim, Huijeong Choi, Myeongjae Lee, Hyeseung Jung, Yukyung Shin, Seul Lee, Kyungkon Kim, Myung Hwa Kim, Kyungwon Kwak, BongSoo Kim
Summary: Organic solar cells (OSCs) with high power conversion efficiencies have been typically made using toxic halogenated solvents. Non-halogenated solvents have emerged as a potential alternative, but achieving optimal morphology has been challenging. In this study, we investigated the dependence of photovoltaic properties of all-polymer solar cells (APSCs) on various high-boiling-point non-halogenated additives. Our results showed that using an additive with an optimal boiling point can lead to better photovoltaic performance and favorable polymer blend morphology, contributing to the development of eco-friendly APSCs.
Article
Chemistry, Multidisciplinary
Langheng Pan, Tao Zhan, Jiyeon Oh, Yue Zhang, Haoran Tang, Mingqun Yang, Mengmeng Li, Changduk Yang, Xi Liu, Ping Cai, Chunhui Duan, Fei Huang, Yong Cao
Summary: In this study, two quinoidal polymers based on dipyrrolopyrazinedione were synthesized and used as electron acceptors in all-polymer solar cells. The all-PSCs exhibited power conversion efficiencies of 1.33% and 2.37% respectively, showcasing these intrinsic quinoidal conjugated polymers' potential in photovoltaic applications. The research indicated that optimization of light absorption, energy levels, and charge transport properties is crucial for improving the performance of quinoidal polymers in all-PSCs.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Physics, Applied
Haixia Hu, Lulu Fu, Kangning Zhang, Kun Gao, Jing Ma, Xiaotao Hao, Hang Yin
Summary: The balance of the electron/hole mobility ratio is thought to affect the device performance of organic solar cells, but may not always be necessary for high-performance polymer solar cells. Some studies suggest a clear correlation between electron hopping distance and fill factor, proposing the relationship between electron hopping distance and fill factor, rather than absolute mobility values.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Ziyun Huang, Ruimin Zhou, Min Lv, Hao Zhang, Chen Yang, Yanan Shi, Yi Tang, Jianqi Zhang, Kun Lu, Zhixiang Wei
Summary: This study introduces a new method to improve the performance of all-small-molecule organic solar systems through ternary strategies, incorporating a small amount of the IDIC acceptor into a ZR1-Cl : IDIC-4Cl based binary system. Results show that the good miscibility enabled by two structurally similar acceptors can enhance short circuit current, open circuit voltage, and fill factor, thereby increasing power conversion efficiency.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Review
Materials Science, Multidisciplinary
Kangkang Zhou, Kaihu Xian, Long Ye
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.
Article
Nanoscience & Nanotechnology
Changjian Song, Xiaohui Liu, Xiaodong Li, Ying-Chiao Wang, Li Wan, Xiaohua Sun, Wenjun Zhang, Junfeng Fang
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Materials Science, Multidisciplinary
Zhen-Zhen Gui, Xiaohui Liu, Shuaiqiang Ming, Ji-Yun Zhang, Qiaomu Xie, Tao Chen, Hai-Qiao Wang
ORGANIC ELECTRONICS
(2018)
Article
Chemistry, Multidisciplinary
Xiaojun Yin, Xiaohui Liu, Yuhao Peng, Weixuan Zeng, Cheng Zhong, Guohua Xie, Lei Wang, Junfeng Fang, Chuluo Yang
ADVANCED FUNCTIONAL MATERIALS
(2019)
Article
Materials Science, Multidisciplinary
Qiaomu Xie, Shuaiqiang Ming, Lijun Chen, Yulei Wu, Wenxiao Zhang, Xiaohui Liu, Meng Cao, Hai-Qiao Wang, Junfeng Fang
ORGANIC ELECTRONICS
(2019)
Article
Nanoscience & Nanotechnology
Xiaohui Liu, Xiaodong Li, Nan Zheng, Cheng Gu, Lei Wang, Junfeng Fang, Chuluo Yang
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Green & Sustainable Science & Technology
Shuaiqiang Ming, Xiaohui Liu, Wenxiao Zhang, Qiaomu Xie, Yulei Wu, Lijun Chen, Hai-Qiao Wang
JOURNAL OF CLEANER PRODUCTION
(2020)
Article
Nanoscience & Nanotechnology
Guanghao Li, Chunyu Xu, Zhenghui Luo, Weimin Ning, Xiaohui Liu, Shaolong Gong, Yang Zou, Fujun Zhang, Chuluo Yang
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Physical
Sheng Fu, Wenxiao Zhang, Xiaodong Li, Li Wan, Yulei Wu, Lijun Chen, Xiaohui Liu, Junfeng Fang
ACS ENERGY LETTERS
(2020)
Article
Energy & Fuels
Xi Fan, Rongjiang Wen, Yonggao Xia, Jinzhao Wang, Xiaohui Liu, Huihui Huang, Yuan Li, Weiya Zhu, Yajun Cheng, Liujia Ma, Junfeng Fang, Hsinhan Tsai, Wanyi Nie
Article
Chemistry, Multidisciplinary
Xiaohui Liu, Xiaodong Li, Lei Wang, Junfeng Fang, Chuluo Yang
Article
Chemistry, Physical
Ruijie Ming, Jianxiao Wang, Wei Gao, Miao Zhang, Jinhua Gao, Weimin Ning, Zhenghui Luo, Xiaohui Liu, Cheng Zhong, Fujun Zhang, Chuluo Yang
Article
Materials Science, Multidisciplinary
Wei Gao, Miao Zhang, Zhanxiang Chen, Xiaohui Liu, Kailu Zheng, Cheng Zhong, Fujun Zhang, Chuluo Yang
JOURNAL OF MATERIALS CHEMISTRY C
(2019)
Article
Chemistry, Physical
Xiaohui Liu, Xiaodong Li, Yang Zou, He Liu, Lei Wang, Junfeng Fang, Chuluo Yang
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Article
Energy & Fuels
Hongjiang Li, Xiaohui Liu, Weiyan Wang, Yuehui Lu, Jinhua Huang, Jia Li, Junjun Xu, Pengxuan Fan, Junfeng Fang, Weijie Song
Article
Energy & Fuels
Peipei Liu, Pingqi Gao, Xiaohui Liu, Haiqiao Wang, Jian He, Xi Yang, Yuheng Zeng, Baojie Yan, Junfeng Fang, Jichun Ye