摘要
In this study, we report a facile method to sequentially electrodeposit a TiO 2 compact layer and a mesoporous scaffold from a single solution. This bilayer TiO 2 structure offers good controllability on the thickness and morphology by simply adjusting the depositing parameters. Currently, perovskite solar cell containing an electrodeposited TiO 2 bilayer exhibits similar power conversion efficiency when compared with the one using double spin-coating techniques, showing great potential to replace conventional tedious TiO 2 film fabrication.