Bithienopyrroledione vs. thienopyrroledione based copolymers: dramatic increase of power conversion efficiency in bulk heterojunction solar cells.

Xiaolan QiaoWeichao ChenQinghe WuShiqian ZhangHongzhuo WuZhi-Qiang Liu Renqiang Yang Hongxiang Li

Published in: Chemical communications (Cambridge, England) (2018)

Bithienopyrroledione (bi-TPD) based polymers P1 and P2 are designed and synthesized. Photovoltaic devices based on P1:PC71BM and P2:PC71BM blend films show power conversion efficiencies (PCEs) of 8.22% and 9.08%, respectively, whereas devices based on their thienopyrroledione (TPD)-based analogue P3 and PC71BM blend films display a PCE of 5.10%.

Keyphrases

solar cells
room temperature
carbon nanotubes
ionic liquid
perovskite solar cells
oxide nanoparticles