supported by the National Natural Science Foundation of China(21875013,U2001217);the Beijing Natural Science Foundation(2182031);Shenzhen Basic Research(JCYJ20220818101018038)。
Defects formed at the surface,buried interface and grain boundaries(GB)of CsPbI_(3)perovskite films considerably limit photovoltaic performance.Such defects could be passivated effectively by the most prevalent post m...