A Review of Recent Progress in Fabrication of Perovskite Solar Cells

In recent years, perovskite solar cells have attracted attention due to their increased power conversion efficiency, simple manufacturing process, low-cost materials, and unique properties such as band tunability, high electron and hole mobility, and low exciton binding energy. Also, the efficiency of perovskite solar cells has exceeded 25 % due to the high quality of perovskite film, synthesis methods, coating, and appropriate electrode materials. This article examines the recent progress of perovskite solar cells, structure, and types of coating methods to understand better and gain complete insight into perovskite solar cells. In the following, some types of perovskites, holes, and electron transfer layers are compared, and their effect on solar cell efficiency is reported. Finally, the types of perovskite coating methods with large and small areas are discussed, and the challenges and opportunities of perovskite solar cell commercialization are suggested.