摘要： Since the first report on a solid-state perovskite solar cell (PSCs) with a power conversion efficiency (PCE) of 9.7% under 1 sun illumination and 500 h stability at ambient conditions obtained from an unencapsulated device in 2012, PSCs have received tremendous attention from scientists and engineers working on not only materials and devices but also fundamentals. The realization of solid-state PSCs was possible due to the fact that methylammonium lead triiodide (MAPbI3) was extremely unstable in dye-sensitized solar cell structures containing polar liquid redox electrolyte. The first version of a PSC was based on a nanocrystalline perovskite with dot morphology sitting on the TiO2 surface, which evolved to a thin film layout looking similar to the conventional p?i?n junction. This initial progress of device structure enhanced PCE to about 12%, which was followed by a further increase in photovoltaic performance by exploring coating methods for high-quality perovskite films. To date, the record PCE of 25.2% was certified by Newport, a proxy for National Renewable Energy Lab (NREL) using quasi-steady-state measurement, which was posted in the best research-cell efficiency chart provided by NREL. PSCs now outperform the completions based on CIGS (PCE = 23.4%), CdTe (PCE = 22.1%), and even multicrystalline Si (PCE = 22.8%).