[14p-P08-1~24] 12.5 Organic and hybrid solar cells

[14p-P08-6] Effect of organic amine on the Sn-based 2D perovskite compounds (I) - Effect of fluorine atoms -

〇(BC)Shohei Sakao¹, Li Chunqing¹, Masatoshi Yanagida², Yasuhiro Shirai², Masahiro Yoshizawa-Fujita¹, Masahiro Rikukawa¹, Yuko Takeoka¹ (1.Sophia Unniv., 2.NIMS)

Keywords:

Tin perovskite,2D perovskite,Fluorine-containing amines

Sn-based perovskite compounds are less toxic to the human body and the environment than Pb-based compounds, but there is concern that they are even less stable than Pb-based compounds because Sn²⁺ is easily oxidized to Sn⁴⁺. In this study, benzylamine was used as an organic amine of an Sn-based 2D perovskite compound to optimize the introduction and substitution position of fluorine atoms and the deposition conditions, and to improve the stability. Stability was improved by introducing a fluorine atom at the para-position of benzylamine. (84 words)