A wide-bandgap copolymer donor based on a phenanthridin-6(5H)-one unit

Ju Wang; Yaxin Gao; Zuo Xiao; Xianyi Meng; Lixiu Zhang; Ling Liu; Chuantian Zuo; Shangfeng Yang; Yingping Zou; Junliang Yang; Shengwei Shi; Liming Ding

doi:10.1039/C9QM00622B

A wide-bandgap copolymer donor based on a phenanthridin-6(5H)-one unit†

Ju Wang,^ab Yaxin Gao,^bc Zuo Xiao,

^b Xianyi Meng,^b Lixiu Zhang,^b Ling Liu,^b Chuantian Zuo,^d Shangfeng Yang,

^e Yingping Zou,

*^a Junliang Yang,

*^c Shengwei Shi*^f and Liming Ding

*^b

Author affiliations

* Corresponding authors

^a College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
E-mail: yingpingzou@csu.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: ding@nanoctr.cn

^c School of Physics and Electronics, Central South University, Changsha 410083, China
E-mail: junliang.yang@csu.edu.cn

^d CSIRO Manufacturing, Bag 10, Clayton South, Victoria 3169, Australia

^e Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China

^f School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, China
E-mail: shisw@wit.edu.cn

Abstract

A wide-bandgap copolymer donor PPN4T-2F based on a phenanthridin-6(5H)-one unit was developed. PPN4T-2F has a large optical bandgap of 2.15 eV and a deep highest occupied molecular orbital level of −5.43 eV. Solar cells based on PPN4T-2F and a nonfullerene acceptor, IT-4F, afforded a power conversion efficiency (PCE) of 8.54%. PPN4T-2F is comparable to the efficient ultra-wide-bandgap copolymer donors.

This article is part of the themed collection: 2019 Materials Chemistry Frontiers HOT articles

Materials Chemistry Frontiers

A wide-bandgap copolymer donor based on a phenanthridin-6(5H)-one unit†

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A wide-bandgap copolymer donor based on a phenanthridin-6(5H)-one unit

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