Terpolymerization strategy to achieve high-efficiency organic solar cells via construction of D1–A–D1–D2-type polymer donors

Xiangmeng Deng; Yu Fang; Bin Huang; Fumin Liao; Kunming Liu; Jialin Zhang; Shanshan Chen; Seoyoung Kim; Changduk Yang; Dongnai Ye; Jinbiao Liu; Lie Chen

doi:10.1039/D2CC04999F

Terpolymerization strategy to achieve high-efficiency organic solar cells via construction of D1–A–D1–D2-type polymer donors†

Xiangmeng Deng,^a Yu Fang,^a Bin Huang,

*^a Fumin Liao,^a Kunming Liu,

^a Jialin Zhang,

^a Shanshan Chen,*^b Seoyoung Kim,^c Changduk Yang,

^c Dongnai Ye,^e Jinbiao Liu

*^a and Lie Chen

^d

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* Corresponding authors

^a Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, P. R. China
E-mail: binhuang@jxust.edu.cn, liujinbiao@jxust.edu.cn

^b School of Energy & Power Engineering, MOE Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Chongqing University, Chongqing 400044, P. R. China
E-mail: shanshanchen@cqu.edu.cn

^c Department of Energy Engineering, School of Energy and Chemical Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea

^d School of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, Nanchang 330031, P. R. China

^e School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, P. R. China

Abstract

Novel terpolymers were developed with ester group incorporation (BDT-2EST). DM1 with 5% BDT-2EST possesses suitable crystallinity and miscibility matching with Y6 acceptor to offer an excellent power conversation efficiency up to 17.21%. Moreover, the intertwined random features in DM1 offer robust photovoltaic performances with a broad molecular weight tolerance.

Chemical Communications

Terpolymerization strategy to achieve high-efficiency organic solar cells via construction of D1–A–D1–D2-type polymer donors†

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Terpolymerization strategy to achieve high-efficiency organic solar cells via construction of D1–A–D1–D2-type polymer donors

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