In situ and real-time ToF-SIMS analysis of light-induced chemical changes in perovskite CH3NH3PbI3

Duo Xu; Xin Hua; Shao-Chuang Liu; Hong-Wei Qiao; Hua-Gui Yang; Yi-Tao Long; He Tian

doi:10.1039/c8cc01606b

In situ and real-time ToF-SIMS analysis of light-induced chemical changes in perovskite CH₃NH₃PbI₃

Chem Commun (Camb). 2018 May 24;54(43):5434-5437. doi: 10.1039/c8cc01606b.

Authors

Duo Xu¹, Xin Hua, Shao-Chuang Liu, Hong-Wei Qiao, Hua-Gui Yang, Yi-Tao Long, He Tian

Affiliation

¹ Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China. ytlong@ecust.edu.cn xinhua@ecust.edu.cn.

PMID: 29745402
DOI: 10.1039/c8cc01606b

Abstract

A hybrid light/ToF-SIMS system was used to analyze the dynamic chemical changes of perovskite CH3NH3PbI3 films under light illumination, in order to reveal the mechanism of light instability for perovskite materials. Real-time material degradation and quasi-reversible iodine migration were successfully observed.