An asymmetric end-capping strategy enables a new non-fullerene acceptor for organic solar cells with efficiency over 10%

Tainan Duan; Licheng Hou; Jiehao Fu; Zhipeng Kan; Qianguang Yang; Qianqian Chen; Cheng Zhong; Zeyun Xiao; Donghong Yu; Shirong Lu

doi:10.1039/D0CC01739F

An asymmetric end-capping strategy enables a new non-fullerene acceptor for organic solar cells with efficiency over 10%†

Tainan Duan,

‡^a Licheng Hou,‡^ab Jiehao Fu,^a Zhipeng Kan,

^a Qianguang Yang,^a Qianqian Chen,^ab Cheng Zhong,*^c Zeyun Xiao,

^a Donghong Yu

*^d and Shirong Lu

*^a

Author affiliations

* Corresponding authors

^a Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China
E-mail: lushirong@cigit.ac.cn

^b University of Chinese Academy of Sciences, Beijing 100049, China

^c Hubei Key Laboratory on Organic and Polymeric Opto-electronic Materials, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
E-mail: zhongcheng@whu.edu.cn

^d Department of Chemistry and Bioscience, Aalborg University, Aalborg, DK 9220, Denmark
E-mail: yu@bio.aau.dk

Abstract

Two different terminal groups, rhodanine-flanked benzo[c][1,2,5]thiadiazole (BR) and 2-(5,6-difluoro-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile (IM2F), were connected to an indaceno[1,2-b:5,6-b′]dithiophene (IDT) core to construct a new non-fullerene acceptor (IDTBF). Solar cells based on this acceptor exhibited promising photovoltaic performances with a power conversion efficiency (PCE) of up to 10.43%.

Chemical Communications

An asymmetric end-capping strategy enables a new non-fullerene acceptor for organic solar cells with efficiency over 10%†

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An asymmetric end-capping strategy enables a new non-fullerene acceptor for organic solar cells with efficiency over 10%

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