Fabrication and photocurrent of lead-free MASnI3 perovskite photodetectors prepared on ITO glass substrates

In this work, we report a lead-free MASnI3 perovskite photodetectors prepared by inverse temperature crystallization method. The surfaces of MASnI3 perovskite films are smooth and evenness. The MASnI3 perovskite photodetectors t has the highest photocurrent value in green light region among the five monochromatic light sources with a photocurrent of 1 uA at bias of 10 V. The advantage of this work is that the manufacturing process is relatively simple and safety, so it can be easily manufactured.