Fig. 6From: Enhanced performance of CH3NH3PbI3−x Cl x perovskite solar cells by CH3NH3I modification of TiO2-perovskite layer interface(Color online) a The J-V curves of PSCs without and with CH3NH3I modification at the optimal concentration (x = 10), b PCE histogram of PSCs based on meso-TiO2 film by CH3NH3I modification with different concentrationsBack to article page