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

Jie Zhang; Jinchao Liu; Aidong Tan; Jinhua Piao; Zhiyong Fu

doi:10.1039/d0cc05386d

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

Chem Commun (Camb). 2020 Nov 18;56(89):13816-13819. doi: 10.1039/d0cc05386d. Epub 2020 Oct 20.

Authors

Jie Zhang¹, Jinchao Liu, Aidong Tan, Jinhua Piao, Zhiyong Fu

Affiliation

¹ The Key Lab of Fuel Cell Technology of Guangdong Province, Guangdong, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China. zyfu@scut.edu.cn.

PMID: 33079090
DOI: 10.1039/d0cc05386d

Abstract

Multiple-ring naphthalenediammonium is employed for the first time to overcome the intrinsic instability of β-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.