Effect of top electrode using Silver Nano powder on the performance of Perovskite Solar cells

One of the most researchable light absorbing materials for solar cells is Methylammonium Lead Iodide (MAPbI 3 ). PIN structure perovskite solar cells were fabricated where electrodes were deposited by thermal evaporation of bulk and nano-powder form of silver (Ag). Film topography, structure, grain size, were measured. Top electrodes with lower surface roughness were obtained by thermally evaporating metal nano-powder. Current density (J) Vs Voltage (V) measurements were carried out for analyzing the device performance. Devices with electrodes from nano-powder exhibited improvement in device performance, as observed from J-V characteristics.