[15p-A408-1~11] 12.3 Functional Materials and Novel Devices

△ [15p-A408-7] Preparation and optical properties of red-emissive perovskite nanocrystals by ultrasound-assisted beads milling

〇(B)Junya Enomoto¹, Kazuki Umemoto², Yuki Tezuka², Yoshihito Takahashi³, Satoshi Asakura^2,4,5, Takayuki Chiba^3,6, Akito Masuhara^2,6 (1.Fac. of Eng., Yamagata Univ., 2.Grad. Sch. of Sci. and Eng., Yamagata Univ., 3.Grad. Sch. of Org. Mat. Sci., Yamagata Univ., 4.Ise Chem. Corp., 5.CIRIC, Chiba Univ., 6.FROM, Yamagata Univ.)

Keywords:perovskite nanocrystals, red-emissive, top-down

Perovskite nanocrystals (PeNCs) with excellent optical properties are expected to be used as a light source to improve color gamut of displays. In this paper, we attempted to synthesize PeNCs by “ultrasound-assisted beads milling” which are novel synthesis method with milling PeNCs by collision of beads, and direct synthesis of PeNCs by ultrasonic cavitation. Preparation of high stable PeNCs can be achieved by this synthesis without polar solvent which dissolve PeNCs.