Regioisomeric thieno[3,4-d]thiazole-based A-Q-D-Q-A-type NIR acceptors for efficient non-fullerene organic solar cells

Abstract

With better phase separation in film morphology, regioisomeric non-fullerene acceptor TzS-S shows 1.5 times higher PCE and 20 times greater electron mobilities than TzN-S, indicating the role of isomeric conformations in photovoltaic performance.