Citation:
Wang D, Wu C, Luo W, Guo X, Qu B, Xiao L, Chen Z. ZnO/SnO2 Double Electron Transport Layer Guides Improved Open Circuit Voltage for Highly Efficient CH3NH3PbI3-Based Planar Perovskite Solar Cells. ACS APPLIED ENERGY MATERIALS. 2018;1:2215-2221.