Our work on PSCs is accepted in ACS Energy Letters

An A-D-A (C60-IT-C60) type organic semiconductor featuring with two C60 sandwiching a cutting-edge NFA backbone indacenodithieno[3,2-b]thiophene (IT) moiety was designed. It not only mitigates the bulk and grain boundary defects of perovskite, but also improves the crystallization of perovskite, leading to a PCE of 24.16% with FF approaching 85%