LetterGradually modulating the three parts of D-π-A type polymers for high-performance organic solar cells
Graphical abstract
By gradually modulating electron-donating (D), π-bridge and electron-accepting (A) units, we systematically investigated the effect on photovoltaic performances of D-π-A type conjugated polymers and realized the highest power conversion efficiency of 14.4%.
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Declaration of Competing Interest
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Acknowledgments
The authors thank the support from the National Key Research and Development Program of China (2017YFA0206600), the Key Research Program of Frontier Sciences, Chinese Academy of Sciences (Grant No. QYZDB-SSW-SLH033), the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB36000000), the National Natural Science Foundation of China (NSFC, Nos. 21875052, 51873044, 52073067).
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