[20a-A204-1~10] 12.3 Functional Materials and Novel Devices

△ [20a-A204-10] Size control of CH₃NH₃PbBr₃ perovskite quantum dots via Ostwald ripening

〇Kazuki Umemoto¹, Tomoko Inose², Tsukasa Yoshida^1,3, Hiroshi Uji-i^2,4, Akito Masuhara^1,3 (1.Grad. Sch. of Sci. and Eng., Yamagata Univ., 2.RIES, Hokkaido Univ., 3.ROEL, Yamagata Univ., 4.KU Leuven)

Keywords:perovskite, reprecipitation, quantum Dots

CH₃NH₃PbBr₃ perovskite quantum dots (PeQDs) are expected to be applied to versatile optical devices such as Solar cells, LED, and Lasers. We successfully synthesize perovskite quantum (PeQDs) by ligand-assisted reprecipitation and obtained PeQDs are precisely size-controlled from 16.7 nm to 5.3 nm via Ostwald ripening. We will report on reprecipitation conditions and optical characteristics from size-controlled PeQDs in detail.