Improved stability of β-CsPbI3 inorganic perovskite using π-conjugated bifunctional surface capped organic cations for high performance photovoltaics

作者：Zhang, Jie; Liu, Jinchao; Tan, Aidong; Piao, Jinhua; Fu, Zhiyong^*

来源：Chemical Communications, 2020, 56(89): 13816-13819.

DOI：10.1039/d0cc05386d

• SOLAR-CELLS
• PASSIVATION
• INTERLAYER
• EFFICIENCY
• STRATEGY

Multiple-ring naphthalenediammonium is employed for the first time to overcome the intrinsic instability of beta-CsPbI3 perovskite via anchoring the ammonium groups occupying A-site vacancies. It improves charge transport and moisture stability giving out a champion power conversion efficiency of 16.69% for an excellent inorganic perovskite solar cell.