화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU))
권호 26권 1호
발표분야 포스터-무기재료
제목 Cs Incorporated Sky-blue Br-based Quasi-2D Perovskite Light Emitting Diode for high quantum efficiency.
초록 Recently, perovskite light-emitting diodes (PeLEDs) have boosted significant research interest as a next-generation LED that can replace existing OLED and QLED due to the appealing properties of metal halide perovskite (MLH) materials such as magnificent carrier mobility, and notable color purity. However, MLH goes so far for LED devices due to its poor stability. To remedy the disadvantage, Quasi-2D perovskites((PEA)2(MA)n-1PbnBr3n+1) have been substituted to enhance the photoluminescence (PL) and humid-stability. Nevertheless, the development of blue Quasi-2D perovskites has been experiencing challenges. In this respect, we tried to enhance stability and control the emission range of Br-based quasi-2D perovskite to the blue region. By controlling the ratio of inorganic-organic hybrid cation spacers, we could fine-tune the wavelength of the PL wavelength.



저자 김지원, 이일금, 이현정, 김민주, 김동하
소속 이화여자대
키워드 Quasi-2D perovskite; sky-blue perovskite; inorganic cation; perovskite LED
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