BCP对红色有机电致磷光器件效率的影响

使用R-4B作为磷光掺杂剂，CBP为主体，制作以BCP调节载流子复合的红色磷光器件，器件结构ITO/MoO₃(30)/NPB(40)/TCTA(10)/CBP:R-4B(6%)(15)/BCP(x)/CBP:R-4B(6%)(15)/BCP(10)/Alq₃(40)/LiF/Al, 其中x为BCP的厚度，对五种不同厚度的器件和一个对MoO₃优化好且不加BCP的对比器件，来研究它们的发光性能和效率。实验表明：对于面积为1.18 cm2的器件，BCP为4 nm, MoO₃在30 nm时，它的性能达到了最佳，启亮电压为4 V，最大效率为18.9 cd·A-1，其对应的EL主峰位于612 nm, 色坐标为(0.643，0.353), 得到了稳定高效的红色磷光OLED器件。

Influence of BCP on Efficiency of Red Phosphorescent Electroluminescent Device

The present paper uses the R-4B as phosphor dopant, the main body was CBP, regulation carrier composite layer was BCP, and the device structure was ITO/MoO₃ (30)/NPB (40)/TCTA (10)/CBP∶R-4B(6%)(15)/BCP(x)/CBP∶R-4B(6%)(15)/BCP(10)/Alq₃(40)/LiF/Al. In the device, x was the thickness of the BCP with five different thickness of the device. At the same time, another contrast device was made, which had been optimized at MoO₃ without regulated BCP layer. The result shows that the luminous area was 1.18 cm2, BCP was 4, MoO₃ was 30 nm, its performance was the best, light voltage was 4 V, maximum efficiency was 18.9 cd·A-1, its corresponding EL main peak was at 612 nm, and color coordinates was (0.643, 0.353), getting stable and high efficient red phosphor OLED devices.