Preparation and Characterization of FTO/nZnO/CH3NH3PbI3/C/Cu Perovskites Solar Cell

Abstract

Nano ZnO is prepared by the sol-gel method and acts as a conductive seed layer in perovskite solar cells. Methylamine lead iodide CH3NH3PbI3 (MAPbI3) was prepared by two steps method of methylamine iodide CH3NH3I/nZnO/FTIO glass and nPbI2. The effect of ZnO semiconductors nanostructure was studied due to its physical properties arising from quantum confinement. Also, it is considered problematic for Perovskite solar-cells due to the notorious instability of the nZnO/perovskite interface, particularly in the case of using MAPbI3 and its effect on the cell efficiency. The nanostructure is characterized using different techniques. The nZnO was introduced into the Perovskite solar cells structure to improve the electron extraction efficiency of Perovskite solar cells, and to increase the stability of Perovskite solar cells using Commercial Carbon is used as whole transparent material. The current-voltage curves of the FTO/nZnO/CH3NH3PbI3/C/Cu solar cell with a perovskite structure have high conversion efficiencies and stability η = 80.41%.