Nucleation mechanism of CH3NH3PbI3 with two-step method for rational design of high performance perovskite solar cells

The performance of Organic-inorganic hybrid perovskite solar cells strongly depend on the quality of perovskite layer. Features of perovskite layer such as grain size, shape, orientation and coverage are mainly determined by the earlier stages of nucleation and growth, which can be controlled by the deposition conditions. Thus, detailed knowledge of such correlations is helpful to optimize thin film quality with regard to controll the deposition...