Interface passivation engineering for hybrid perovskite solar cells

The allure of high efficiency and low-temperature solution-processed organic-inorganic hybrid perovskite solar cells (PSCs) are inspiring scientists to seek for its commercialization. Interface passivation engineering has become an effective way to further enhance the efficiency and stability of PSCs by defect passivation, reduces the charge recombination and ion migration initiation and hysteresis control, etc. Herein, we have summarized the effects and recent research progress of interface passivation engineering in PSCs. Interface passivation layers can be realized by using the solution and/or vacuum evaporation processes which are very adaptable to varied materials with different properties and fabrication processes for enhanced photovoltaic performance and stability.