[23p-D114-1~12] 12.3 Functional Materials and Novel Devices

△ [23p-D114-8] Red-emissive perovskite quantum dots with high optical properties for quantum dot color filter

〇(B)Kenshin Yoshida¹, Ryota Sato², Naoaki Oshita², Satoshi Asakura³, Takayuki Chiba^4,5, Akito Masuhara^2,5 (1.Fac. of Eng., Yamagata Univ., 2.Grad. Sch. of Sci. and Eng., Yamagata Univ., 3.Ise Chem. Corp., 4.Grad. Sch. of Org. Mat. Sci., Yamagata Univ., 5.FROM, Yamagata Univ.)

Keywords:Perovskite quantum dots, Red-emission, high photoluminescence quantum yield

ABX₃ typed perovskite quantum dots (PeQDs) as a light source for the next generation of films have been established their preparing method under the room temperature and air condition. Among the various PeQDs, red-emissive PeQDs still not have been improved their performance for the following reason. One is the using a polar solvent, and the other is the insufficient passivation of PeQD surface defects. To solve these issues, in this work, we report on achieving PLQY of about 100% on red-emissive PeQDs to use the octylammonium iodide which is the ligand to passivate the PeQD surface by the room-temperature synthesis without a polar solvent.