Figure 8

(a) Absorbance spectrum, (b) PL of different FTO/TiO2/MAPbI3, FTO/TiO2/Cu-BTC MOF/MAPbI3, and FTO/TiO2/Co-BTC MOF/MAPbI3 structures, and (c) the Tafel response of different net and modified ETLs.

(a) Absorbance spectrum, (b) PL of different FTO/TiO2/MAPbI3, FTO/TiO2/Cu-BTC MOF/MAPbI3, and FTO/TiO2/Co-BTC MOF/MAPbI3 structures, and (c) the Tafel response of different net and modified ETLs.