The Principle and Research Progress of Perovskite Solar Cells

Abstract

Perovskite materials have unique optoelectronic properties, such as high light absorption coefficient, long carrier diffusion length, adjustable band gap, etc., which make it have huge application potential in the field of solar cells. As a new generation of high efficiency photovoltaic technology, perovskite solar cells have attracted extensive attention from researchers around the world in recent years due to their unique photoelectric conversion characteristics and low manufacturing cost. This paper briefly summarizes the working principle of perovskite solar cells, firstly reviews its development process from the 1990s to the global market from the laboratory, and then focuses on the research progress of improving the efficiency of perovskite solar cells. Not only can the efficiency of the cell be greatly improved by enhancing light absorption, optimizing carrier transport and innovating the structure design of the cell, but also can be greatly improved by optimizing the interface structure between the perovskite layer and the electron transport layer and the hole transport layer, as well as optimizing the material properties, improving the preparation process and device structure. Finally, in the context of globalization, its market potential is deeply analyzed, and its commercial use and future development direction are further prospected.