High efficient perovskite solar cells via two-steps growth approach of perovskite film

摘要

Organic-inorganic perovskite solar cells (PSCs) have attracted enormous attention, as the power conversion efficiency (PCE) has boosted to over 20.0%. The drastic development stems from the superior properties of perovskite materials, including long carrier diffusion length and strong light absorption. The performance of PSCs mainly limits by perovskite film and the ratio of PbI2 seriously effects the quality of perovskite layer as a doubled edged sword.