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

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

来源：Chemical Communications, 2022, 58(62): 8686-8689.

DOI：10.1039/d2cc03172h

• MOLECULES
• RECOMBINATION

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 pi-conjugated molecules for photovoltaics.