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使用典型天蓝色磷光材料FIrpic作为磷光金属微腔有机发光器件(OLED)的发光层,以高反射的Al膜作为阴极顶电极和半透明的Al膜作为阳极底电极,采用空穴和电子注入层MoO3和LiF,制备了结构glass/Al(15nm)/MoO3(xnm)/NPD(40nm)/mCP:FIrpic(30nm,7%)/BCP(20nm)/Alq3(20nm)/LiF(1nm)/Al(150nm)的底发射磷光金属微腔OLED,微腔OLED正方向电致发光(EL)光谱的中心波长为468nm,半波宽(FWHM)约为24nm,色坐标为(0.14,0.15),其发光波长得到调制,光谱得到窄化。理论模拟得到微腔OLED的发光增强因子与实际光谱吻合。
The typical sky blue phosphorescent material FIrpic is used as the light emitting layer of the phosphorescent metal microcavity organic light emitting device (OLED), the highly reflective Al film is used as the cathode top electrode and the semitransparent Al film is used as the anode bottom electrode, and holes and electron injection layers Structure Glass / Al (15nm) / MoO3 (xnm) / NPD (40nm) / mCP: FIrpic (30nm, 7%) / BCP (20nm) / Alq3 (20nm) / LiF (150 nm). The center wavelength of the electroluminescence (EL) spectrum in the positive direction of the microcavity OLED was 468 nm, FWHM was about 24 nm, and the color coordinates were (0.14, 0.15) The emission wavelength is modulated and the spectrum narrowed. Theoretical simulation results show that the luminescence enhancement factor of microcavity OLED agrees with the actual spectrum.