Crystal structures in state-of-the-art non-fullerene electron acceptors

Great progress in the power conversion efficiencies (PCEs) of organic photovoltaics (OPVs) has been made by employing non-fullerene acceptors (NFAs). In order to further promote the device performance, it is necessary to systematically understand the design strategies, packing information and interm...

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Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2023-01, Vol.11 (2), p.481-494
Main Authors: Ma, Lijiao, Zhang, Shaoqing, Hou, Jianhui
Format: Article
Language:English
Subjects:
Crystal structure
Energy conversion efficiency
Fullerenes
Packing
Photovoltaic cells
Photovoltaics
Single crystals
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Summary:Great progress in the power conversion efficiencies (PCEs) of organic photovoltaics (OPVs) has been made by employing non-fullerene acceptors (NFAs). In order to further promote the device performance, it is necessary to systematically understand the design strategies, packing information and intermolecular interactions at the atomic level of NFAs. In this review, we highlight the recent advances in the study of single crystal structures of NFAs in OPVs, as well as the relationship between molecular design strategies, packing arrangement, and their corresponding properties. Finally, the challenges and future development of new electron acceptors with ideal single crystal structures and packing modes for next-generation organic photovoltaics are discussed. The relationship between molecular design strategies, the packing information of small molecule acceptors is demonstrated. This review highlights the recent advances in the study of single crystal structures of non-fullerene acceptors (NFAs).
ISSN:2050-7488
2050-7496
DOI:10.1039/d2ta08367a