Figure 7From: Efficient perovskite solar cells based on low-temperature solution-processed (CH3NH3)PbI3 perovskite/CuInS2 planar heterojunctions IPCE spectra of the ITO/CuInS 2 ( 2 )/Al 2 O 3 /(CH 3 NH 3 )PbI 3 /Ag solar cell. Back to article page