Perovskite Materials in Photovoltaics

Abstract

In the past few years, the synthesis and development of perovskite materials have been focused due to the excellent physiochemical properties of the perovskites. The organic-inorganic hybrid metal halide perovskites have been proven a most efficient light harvester or light absorber for the development of perovskite solar cells. The solar cells based on these organic-inorganic hybrid metal halide perovskites have led the power conversion efficiency to a level needed for commercialization which makes them superior among thin-film solar cells. In 2017, organic-inorganic hybrid metal halide perovskites have crossed the power conversion efficiency of 23% which is believed to be due to the long charge diffusion length, tunable bandgap, controlled electron/hole transport behavior, and high absorption coefficient. However, these perovskite solar cells suffer from serious drawbacks such as low stability and presence of highly toxic lead (Pb2+). Currently, the researchers have now focused to develop the strategies toward the fabrication of lead-free perovskite solar cells with high device stability and performance in aerobic condition. © Springer Nature Switzerland AG 2021. All rights are reserved.