Article
Chemistry, Physical
Z. Wu, S. Lee, S. Y. Jeong, M. H. Jee, H. G. Lee, C. Lim, C. Wang, B. J. Kim, H. Y. Woo
Summary: The synthesis of two fullerene-non-fullerene hybrid acceptors shows potential for improving the efficiency of organic solar cells, leading to higher power conversion efficiencies by enhancing the short-circuit current density and fill factor.
MATERIALS TODAY ENERGY
(2021)
Review
Chemistry, Physical
Wei Liu, Xiang Xu, Jun Yuan, Mario Leclerc, Yingping Zou, Yongfang Li
Summary: Recent advancements in organic solar cells have been achieved with the introduction of non-fullerene acceptors (NFAs), which offer a wide absorption range and easily tunable energy levels. Efficient OSCs rely on good donor-acceptor compatibility, morphological control, and device engineering. Researchers have summarized design and synthesis strategies for NFAs, as well as proposed innovative solutions for material and device engineering to advance the development and applications of OSCs.
ACS ENERGY LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Mingqing Chen, Yaowen Nian, Zelong Hu, Lianjie Zhang
Summary: This study reveals that modifying alkyl side chains of non-fullerene acceptors can adjust the photovoltaic performance, and the non-fullerene acceptor with hexyl side chains exhibits more compact intermolecular interactions compared to that with octyl side chains. Devices utilizing octyl side chains achieve higher power conversion efficiency in comparison to those using hexyl side chains.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Bernhard Mahlmeister, Rebecca Renner, Olga Anhalt, Matthias Stolte, Frank Wuerthner
Summary: A series of twisted PBI dyes with conformationally stable axial chirality were investigated as non-fullerene acceptors in organic solar cells. The study revealed the significance of substituents in both positions on the packing arrangements, showing that the OSC performance is influenced by the enantiopurity of the chromophore.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Dongxu Li, Chaoyuan Sun, Tengfei Yan, Jun Yuan, Yingping Zou
Summary: In recent years, significant progress has been made in organic solar cells using asymmetric strategies to construct non-fullerene small molecule acceptors, achieving power conversion efficiencies of over 18%. Asymmetric acceptors not only impact molecular packing through changes in conformation but also achieve a balance between solubility and crystallinity.
ACS CENTRAL SCIENCE
(2021)
Article
Multidisciplinary Sciences
Yanan Shi, Yilin Chang, Kun Lu, Zhihao Chen, Jianqi Zhang, Yangjun Yan, Dingding Qiu, Yanan Liu, Muhammad Abdullah Adil, Wei Ma, Xiaotao Hao, Lingyun Zhu, Zhixiang Wei
Summary: This study reveals the relationship between reorganization energy and energy losses by designing and synthesizing two acceptors with smaller reorganization energies, providing direction for achieving high-performance organic solar cells.
NATURE COMMUNICATIONS
(2022)
Review
Chemistry, Physical
Ardalan Armin, Wei Li, Oskar J. Sandberg, Zuo Xiao, Liming Ding, Jenny Nelson, Dieter Neher, Koen Vandewal, Safa Shoaee, Tao Wang, Harald Ade, Thomas Heumueller, Christoph Brabec, Paul Meredith
Summary: Organic solar cells have evolved from relying on fullerenes as acceptors to the emergence of non-fullerene acceptors (NFAs) which have significantly improved cell efficiencies. However, NFAs challenge the traditional understanding of organic solar cell operation, requiring rethinking of morphology, charge generation, and recombination.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Seunggyun Hong, Chang Eun Song, Du Hyeon Ryu, Sang Kyu Lee, Won Suk Shin, Eunhee Lim
Summary: This study introduces two cyclohexyl-substituted non-fullerene small molecules with the same molecular backbone and different properties. One molecule exhibits higher thermal stability and crystallinity, while the other can form a uniform film through solution-processing due to enhanced solubility. By pairing with a polymer donor, the organic solar cell device based on one of the small molecules shows improved performance with a high power conversion efficiency.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Peddaboodi Gopikrishna, Huijeong Choi, Do Hui Kim, Jun Ho Hwang, Youngwan Lee, Hyeonwoo Jung, Gyeonghwa Yu, Telugu Bhim Raju, Eunji Lee, Youngu Lee, Shinuk Cho, BongSoo Kim
Summary: This study demonstrates that asymmetric structural modifications of NFAs can improve the photovoltaic performance and stability of OSCs, with IPC-BEH-IC2F exhibiting the best material properties in this aspect.
Article
Chemistry, Multidisciplinary
Lixuan Liu, Yangjun Yan, Shengda Zhao, Tong Wang, Wenqing Zhang, Jianqi Zhang, Xiaotao Hao, Yajie Zhang, Xinghua Zhang, Zhixiang Wei
Summary: The effect of stereoisomers on the photovoltaic performance of organic semiconductor materials has been rarely investigated. This study compares the photovoltaic performance of enantiomerically pure Y6 derivatives and their chiral mixtures. It is found that the racemic mixtures exhibit efficient light harvesting, fast hole transfer, and long polaron lifetime, leading to a higher power conversion efficiency and reduced energy loss compared to the enantiomerically pure molecules. This study highlights the importance of chirality in designing organic solar cells for enhanced efficiency.
Article
Chemistry, Physical
Shihao Chen, Minghao Dong, Yuanqing Bai, Yuting Chen, Yuang Fu, Lin Shao, Xinhui Lu, Chunchen Liu, Kai Zhang, Hongbin Wu, Fei Huang
Summary: In this study, two novel acceptor-donor-acceptor (A-D-A) conjugated molecules, ABBT-BO and ABBT-DT, using dithieno-1,4-azaborine as the core D unit have been designed and synthesized. Both molecules exhibited excellent solubility, strong and broad absorption and appropriate energy levels, enabling them to be promising candidates for non-fullerene acceptors (NFAs). The PM6:ABBT-BO based OSCs achieved a power conversion efficiency (PCE) of 10.07%, the highest reported efficiency for NFAs featuring BN-heteroarenes.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Yuanfeng Li, Difei Zhang, Zhenqiang Huang, Tianyang Zhang, Nan Zheng, Feng Peng, Lei Ying, Fei Huang
Summary: This study focuses on the design and synthesis of two naphtho[1,2-c:5,6-c ']bis([1,2,5]thiadiazole) derivatives as non-fullerene acceptors for organic solar cells. The effect of halogen substitution on the properties of the derivatives was investigated, and PTzBI-dF was used as the electron-donating polymer. It was found that the film based on the chlorinated derivative showed a more favorable morphology and slightly higher power conversion efficiency.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Yan Gao, Qiaoling Chen, Liwen Wang, Hao Huang, Andong Zhang, Cuihong Li, Xinjun Xu, Zhishan Bo
Summary: End-group modification of non-fullerene acceptors is effective in optimizing the performance of organic solar cells. The introduction of a phenoxy group can decrease planarity, increase solubility, and elevate energy levels. The substituent position of the phenoxy group can affect the morphology of blend films and the photovoltaic performance of the device.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Giacomo Forti, Robert M. Pankow, Fei Qin, Yongjoon Cho, Brendan Kerwin, Isaiah Duplessis, Andrea Nitti, Seonghun Jeong, Changduk Yang, Antonio Facchetti, Dario Pasini, Tobin J. Marks
Summary: Researchers synthesized three new polymer acceptors P1-P3 and co-polymerized them with high-efficiency acceptor units (NDI, Y6, and IDIC) using a scalable donor fragment ADT to fabricate efficient APSCs. Although the APSCs fabricated by blending P1, P2, and P3 with donor polymers PM5 and PM6 exhibited modest power conversion efficiencies, these APSCs demonstrated the feasibility of using ADT as a scalable and inexpensive electron-rich/donor building block for APSCs.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
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)
