Perovskite materials have high light absorption coefficient and long carrier diffusion distance. In the range of visible wavelength (380~800nm), the light absorption coefficient of perovskite is 1-2 orders of magnitude higher than that of silicon, so the perovskite film only needs a few hundred nanometers to have a strong light absorption capacity. Perovskite materials have the advantages of adjustable band gap, excellent low light performance, simple manufacturing process, low raw material cost, high photoelectric conversion efficiency, etc., and have broad application prospects.
