Perovskite Photovoltaics: Rare Functions of Organo Lead Halide in Solar Cells and Optoelectronic Devices

Organo-lead halide perovskite compounds, otherwise called organic inorganic hybrid perovskite, represented by CH3NH3PbI3, exhibit many rare functions as narrow-band-gap semiconductors that are superior in applications for photovoltaic power conversion as well as for high-gain photon-mode detection of visible light. In this review, photoelectric properties of solution-processed CH3NH3PbI3 films and future perspectives in low-cost device fabrication are discussed based on our investigations.