| π-Extension and chlorination of non-fullerene acceptors enable more readily processable and sustainable high-performance organic solar cells |
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| 作者姓名： | Ning Su Jianhua Chen Mengran Peng Guoping Li Robert M.Pankow Ding Zheng Junqiao Ding Antonio Facchetti Tobin J.Marks |
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| 作者单位： | 1. Department of Chemical Science and Technology, Yunnan University;2. Department of Chemistry and the Materials Research Center, Northwestern University |
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| 基金项目： | supported by the National Natural Science Foundation of China (61804073)； |
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| 摘 要： | Organic solar cells(OSCs) processed without halogenated solvents and complex treatments are essential for future commercialization. Herein, we report three novel small molecule acceptors(NFAs) consisting of a Y6-like core but with π-extended naphthalene with progressively more chlorinated end-capping groups and a longer branched chain on the Nitrogen atom. These NFAs exhibit good solubilities in nonchlorinated organic solvents, broad optical absorptions, close π-π stacking distances(3.63–3.84 ?)...
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