2-TNATA对蓝与黄二基色分离的堆叠式白色有机发光器件性能的影响

摘要

This paper systematically investigated the effect of the thickness of 2-TNATA on the characteristics of stacked white organic light-emitting devices consisting of separate blue and yellow elements.The device structure was 2-TNATA(x nm)/NPB(25 nm)/AND(30 nm):TBPE(2%):DCJTB (1%)/Alq3 (20 nm)/LiF(1 nm)/Al(100 nm).According to the experimentation result,it was found the effects of thickness of 2-TNATA on carrier injection,color and thermal stability was very significant.The color of the white device can be adjusted by changing the thickness of 2-TNATA inserted.The device using 20 nm 2-TNATA as a hole injection layer showed pure-white light emitting with 1931 CIE chromaticity coordinates x=0.319 7,y=0.349 6,and the luminance of 12 230 cd/m2.%研究了2-TNATA厚度对蓝与黄二基色分离的堆叠式白色有机发光器件性能的影响.器件结构为:2-TNATA(x nm)/NPB(25 nm)/ADN(30 nm):TBPE(2%):DCJTB(1%)/Alq3(20 nm)/LiF(1 nm)/Al(100nm).根据实验结果,2-TNATA的厚度对载流子的注入、色稳定性、热稳定性影响明显.发光器件的颜色可以通过改变加入的2-TNATA层的厚度来改变.这种器件使用2-TNATA作为空穴注入层显示出了色纯度高的白光发射,CIE色坐标x=0.319 7,y=0.349 6.亮度能够达到12 230 cd/m2.