| 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. |
