An electron acceptor featuring a B–N covalent bond and small singlet–triplet gap for organic solar cells

Xinyuan Liu; Shuting Pang; Liang Zeng; Wanyuan Deng; Mingqun Yang; Xiyue Yuan; Junyu Li; Chunhui Duan; Fei Huang; Yong Cao

doi:10.1039/D2CC03172H

An electron acceptor featuring a B–N covalent bond and small singlet–triplet gap for organic solar cells†

Xinyuan Liu,‡^a Shuting Pang,‡*^a Liang Zeng,^a Wanyuan Deng,^a Mingqun Yang,^a Xiyue Yuan,^a Junyu Li,^b Chunhui Duan,

*^a Fei Huang

^a and Yong Cao^a

Author affiliations

* Corresponding authors

^a Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, China
E-mail: pangshuting@scut.edu.cn, duanchunhui@scut.edu.cn

^b Molecular Materials and Nanosystems & Institute for Complex Molecular Systems, Eindhoven University of Technology, MB Eindhoven, The Netherlands

Abstract

BNTT2F, an electron acceptor featuring a B–N covalent bond and singlet–triplet gap as low as 0.20 eV via the multiple resonance effect, is developed for organic solar cells. The optimized device based on BNTT2F offered an efficiency of 8.3%, suggesting the great prospect of B–N covalent bond-containing π-conjugated molecules for photovoltaics.

Chemical Communications

An electron acceptor featuring a B–N covalent bond and small singlet–triplet gap for organic solar cells†

Abstract

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An electron acceptor featuring a B–N covalent bond and small singlet–triplet gap for organic solar cells

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