An efficient medium-bandgap nonfullerene acceptor for organic solar cells

Qishi Liu; Ke Jin; Wenting Li; Zuo Xiao; Ming Cheng; Yongbo Yuan; Shengwei Shi; Zhiwen Jin; Feng Hao; Shangfeng Yang; Liming Ding

doi:10.1039/D0TA02427A

An efficient medium-bandgap nonfullerene acceptor for organic solar cells†

Qishi Liu,‡^ab Ke Jin,‡^b Wenting Li,^b Zuo Xiao,

*^b Ming Cheng,

^c Yongbo Yuan,^d Shengwei Shi,^e Zhiwen Jin,

*^f Feng Hao,

*^g Shangfeng Yang

*^a and Liming Ding

*^b

Author affiliations

* Corresponding authors

^a Hefei National Laboratory for Physical Sciences at Microscale, Key Laboratory of Materials for Energy Conversion (CAS), Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
E-mail: sfyang@ustc.edu.cn

^b Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, China
E-mail: xiaoz@nanoctr.cn, ding@nanoctr.cn

^c Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China

^d School of Physics & Electronics, Central South University, Changsha 410083, China

^e School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, China

^f School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
E-mail: jinzw@lzu.edu.cn

^g School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China
E-mail: haofeng@uestc.edu.cn

Abstract

A medium-bandgap acceptor IBCT based on an 2-(1-oxo-1,2-dihydro-3H-benzo[b]cyclopenta[d]thiophen-3-ylidene)malononitrile end unit was developed. IBCT has an optical bandgap of 1.65 eV and afforded a power conversion efficiency of 11.26% and an open-circuit voltage of 1.02 V in single-junction organic solar cells when blending with a wide-bandgap copolymer donor L1. The L1:IBCT solar cell was further used as the front cell in tandem solar cells, yielding a 15.25% efficiency. IBCT is among the best medium-bandgap acceptors.

This article is part of the themed collection: Journal of Materials Chemistry A HOT Papers

Journal of Materials Chemistry A

An efficient medium-bandgap nonfullerene acceptor for organic solar cells†

Abstract

Supplementary files

Article information

Download Citation

Permissions

An efficient medium-bandgap nonfullerene acceptor for organic solar cells

Social activity

Search articles by author

Spotlight

Advertisements