Fused-ring phenazine building blocks for efficient copolymer donors

Wenting Li; Qishi Liu; Ke Jin; Ming Cheng; Feng Hao; Wu-Qiang Wu; Shengjian Liu; Zuo Xiao; Shangfeng Yang; Shengwei Shi; Liming Ding

doi:10.1039/D0QM00080A

Fused-ring phenazine building blocks for efficient copolymer donors†

Wenting Li,‡^ab Qishi Liu,‡^bc Ke Jin,^b Ming Cheng,

^d Feng Hao,

^e Wu-Qiang Wu,^f Shengjian Liu,

^g Zuo Xiao,

*^b Shangfeng Yang,

*^c Shengwei Shi*^a and Liming Ding

*^b

Author affiliations

* Corresponding authors

^a School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, China
E-mail: shisw@wit.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 Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
E-mail: sfyang@ustc.edu.cn

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

^e School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China

^f School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China

^g School of Chemistry, South China Normal University, Guangzhou 510006, China

Abstract

Two phenazine copolymer donors P1 and P2 were developed. P1 and P2 have deep highest occupied molecular orbital levels, enhanced light-harvesting capability and good hole mobility. Solar cells based on P2 and a nonfullerene acceptor, Y6, gave a power conversion efficiency (PCE) of 15.14%, which has been the highest value achieved by phenazine-donor-based solar cells to date.

Materials Chemistry Frontiers

Fused-ring phenazine building blocks for efficient copolymer donors†

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Fused-ring phenazine building blocks for efficient copolymer donors

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