Effect of dimethylamino substituent on tetraphenylethylene-based hole transport material in perovskite solar cells

N,N-dimethylamino substituted tetraphenylethylene derivative (TPE-NMe) was synthesized and characterized, and was successfully applied as hole transport material in perovskite solar cells. Compared with the methoxy substituent, the N,N-dimethylamino substituent provides higher Jsc and FF values.221