Figure 2. Short circuit current as a function of the thickness of TiO2. Corresponding comparison of quantum efficiency for perovskite based solar cell with the variation of TiO2 layer thickness (Inset)

From

Optical Analysis in CH3NH3PbI3 and CH3NH3PbI2Cl Based Thin-Film Perovskite Solar Cell

Wayesh Qarony, Yesmin Ara Jui, Gloria Mithi Das, Tashfiq Mohsin, Mohammad Ismail Hossain, Syed Nurul Islam

American Journal of Energy Research. 2015, 3(2), 19-24 doi:10.12691/ajer-3-2-1