Low-temperature and Ambient Air Processes of Amorphous SnOx-based Mixed Halide Perovskite Planar Solar Cell

Herein, we report an amorphous tin oxide (SnOx)-based planar solar cell using a mixed organic cation mixed halide perovskite ((FAPbI3)0.85(MAPbBr3)0.15) absorber prepared via low-temperature solution processes under the ambient air condition (relative humidity 40%). The device performance demonstrated power conversion efficiency (PCE) up to 16%. Additionally, the device with a SnO2 compact layer (CL) also reveals superior light-harvesting properties under weak incident light in comparison with those of TiO2.

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