[15a-A401-1~9] 12.5 Organic and hybrid solar cells

△ [15a-A401-7] Synthesis and Properties of Mixed-Ion Tin Perovskite Single Crystals

〇Tomoya Nakamura¹, Fuyuki Harata¹, Takumi Yamada¹, Yoshihiko Kanemitsu¹, Minh Anh Truong¹, Richard Murdey¹, Atsushi Wakamiya¹ (1.Institute for Chemical Research, Kyoto Univ.)

Keywords:perovskite, single crystal, semiconductor

The band gaps of tin halide perovskites, ASnX₃ (A = monovalent cation, X = halide), can be tuned by the combination of A- and X-site ions. Here, we found that the single crystals of mixed-ion tin perovskites can be synthesized by the crystallization from precursor solutions containing multiple ions. In this presentation, the synthesis, crystal structures, energy levels and optical properties of mixed-ion single crystals will be presented.