Influence of alkyl chain fluorination proportion on the photovoltaic performance of non-fullerene acceptors

Three non-fullerene acceptors (NFAs) with varying alkyl chain sizes and lengths but constant fluorine atoms were synthesized. BO-17F and HD-17F, with optimal fluorination, exhibit improved molecular packing and morphology, achieving efficiencies of 14.2% and 14.4%. This work highlights the importanc...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2024-10, Vol.6 (86), p.12589-12592
Main Authors: Liu, Shuai, Li, Tongzi, Zhou, Xiaoli, Liang, Wenting, Zhu, Shenbo, Xiong, Wenzhao, Cui, Yongjie, Hu, Huawei, Chen, Yiwang
Format: Article
Language:English
Subjects:
Chemical synthesis
Fluorination
Fluorine
Fullerenes
Photovoltaic cells
Solar cells
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Summary:Three non-fullerene acceptors (NFAs) with varying alkyl chain sizes and lengths but constant fluorine atoms were synthesized. BO-17F and HD-17F, with optimal fluorination, exhibit improved molecular packing and morphology, achieving efficiencies of 14.2% and 14.4%. This work highlights the importance of fine-tuning alkyl chains and fluorination levels in organic solar cells. Three non-fullerene acceptors with varying alkyl chains, while maintaining a constant presence of fluorine atoms, were synthesized and systematically compared to investigate the structure-function relationship.
ISSN:1359-7345
1364-548X
1364-548X
DOI:10.1039/d4cc04224g