Introducing fluorene into organic hole transport materials to improve mobility and photovoltage for perovskite solar cells

Chem Commun (Camb). 2019 Nov 5;55(89):13406-13409. doi: 10.1039/c9cc06155j.

Abstract

A new small molecular hole-transporting material, 1,3,6,8-tetrakis[N-(p-methoxyphenyl)-N'-(9,9'-dimethyl-9H-fluoren-2-yl)-amino]pyrene (TFAP) was synthesized and applied in CH3NH3PbI3-perovskite solar cells. A best power conversion efficiency of 19.7% with a photovoltage of 1.11 V has been achieved.