Research Progress of Perovskite Solar Cells

Development of perovskite solar cell is very fast in recent years due to its low cost and high photoelectric conversion efficiency. The perovskite solar cell is generally composed by the compact nanocrystalline layer, light absorber CH 3 NH 3 PbX 3 (X= Cl, Br, I), hole transporting layer, and counter electrode. Among these components, the light absorber species and its preparation techniques, hole transporting material species and the structure design of the device are the most important factors, which directly affect the photovoltaic performances of perovskite solar cells. This paper summarizes the effect of the light-absorbers, hole transport materials, processing parameters, and device structural design on the photovoltaic properties of perovskite solar cells according to recent research progresses in this field.