A high-performance non-fullerene electron acceptor with bisalkylthiothiophene π-bridges for organic photovoltaics.

Autor: Wang, Zhaolong, Huang, Kunxiang, Chen, Xianjie, Xu, Yating, Xu, Zheng, He, Tian, Yin, Shouchun, Qiu, Huayu, Li, Miaomiao, Zhang, Qian
Zdroj: Journal of Materials Chemistry C; 12/14/2019, Vol. 7 Issue 46, p14499-14503, 5p
Abstrakt: A new non-fullerene small molecule acceptor IDT2ST-4F bearing a bisalkylthiothiophene unit as the π-bridge was designed and synthesized, which exhibited a low optical bandgap of 1.43 eV. The optimized organic solar cells based on PBDB-T:IDT2ST-4F gave a high power conversion efficiency (PCE) of 11.43% with a relatively low energy loss of 0.58 eV. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index