A Novel Hole Transport Material for Perovskite Solar Cells: V886

Recently, perovskite solar cells have received much attention and novel hole transport materials (HTMs) for these solar cell devices have been developed.

Nazeeruddin et al. have reported a novel HTM containing carbazole structures (V886, 1).¹⁾ Some advantages of 1 are the simple synthetic pathway at a low cost and higher glass transition temperature compared with those of spiro-OMeTAD. The power conversion efficiency of a perovskite solar cell using 1 was 16.91% as reported in 2015, which was comparable with that of a spiro-OMeTAD device (18.36%).¹⁾