1:30 PM - 3:30 PM
▼ [16p-P6-17] Efficient Planar Perovskite Solar Cells Using Solution-Processed Amorphous WOx/Fullerene C60 as Electron Extracting Layers
Keywords:Perovskite Solar Cells, Low Temperature, Electron Selective Layers
Amorphous tungsten oxide (WOx) has been successfully employed as electron extracting layer (EEL) in PSCs. However, the WOx device suffers from high charge recombination at the perovskite/WOx interface, resulting to low open circuit voltage (Voc) and fill factor (FF). Here, we report that WOx/fullerene C60 can work cooperatively to further enhance the performance of PSCs. When a WOx/C60 was used as EEL for the device, a PCE of 16.0% was achieved, while the pristine WOx achieved a PCE of 13.3% under reversed voltage scanning.