Figure 4

SEM image and XRD analysis. (a) Top-view SEM image of the ITO/CuInS2(2)/Al2O3/(CH3NH3)PbI3 film and (b) the XRD analysis of the prepared (CH3NH3)PbI3 film.
SEM image and XRD analysis. (a) Top-view SEM image of the ITO/CuInS2(2)/Al2O3/(CH3NH3)PbI3 film and (b) the XRD analysis of the prepared (CH3NH3)PbI3 film.