[12a-S201-1~9] Next generation luminescent materials for optical devices

△ [12a-S201-4] Fabrication of blue emissive perovskite quantum dots with near-unity photoluminescence quantum yield

〇(M1)Naoaki Oshita¹, Keisuke Kikuchi¹, Satoshi Asakura^1,2, Takayuki Chiba^3,4, Akito Masuhara^1,4 (1.Grad. Sch. of Sci. and Eng., Yamagata Univ., 2.Ise Chem. Corp., 3.Grad. Sch. of Org. Mat. Sci., Yamagata Univ., 4.FROM, Yamagata Univ.)

Keywords:Perovskite quantum dots, Blue-emission, near-unity photoluminescence quantum yield

Perovskite quantum dots (PeQDs) have reproducible emission color in the visible light range by controlling halogen composition. However, blue emissive PeQDs including two types of halogens show phase separation of halogens, and the emission color is changed from blue to green. Here, we have synthesized single halide blue emissive PeQDs with near-unity photoluminescence quantum yield that can be expected to stabilize the emission color by adding bromide salts.