Influence of interlayer on the performance of stacked white organic light-emitting devices
Influence of interlayer on the performance of stacked white organic light-emitting devices
复制标题
中间层对堆叠式白光有机电致发光器件性能的影响
DOI：
10.1063/1.3234379
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发表时间：
2009-09-21
影响因子：
4
通讯作者：
Li, Bin
中科院分区：
文献类型：
--
作者：
Chen, Ping;Xue, Qin;Li, Bin
采用三（8-羟基喹啉）铝（Alq3）：Mg/MoO3作为电荷产生层，制备了由蓝色荧光和橙色磷光发光单元组成的堆叠白色有机发光器件（WOLEDs）。用一种简单的方法讨论了Alq3:Mg/MoO3的工作机理。我们证明了电荷载流子分离只发生在MoO3层。通过调整MoO3的厚度，获得了性能更好的叠层WOLED。效率为39.2 cd/A的叠层WOLED具有优异的色彩稳定性，当亮度从22 cd/m2增加到10,000 cd/m2时，其国际发光委员会坐标仅从（0.407,0.405）变化到（0.398,0.397）。
Stacked white organic light-emitting devices (WOLEDs) comprising of blue fluorescent and orange phosphorescent emissive units employing tri(8-hydroxyquinoline) aluminum (Alq3):Mg/MoO3 as charge generation layer are fabricated. The working mechanism of Alq3:Mg/MoO3 is also discussed using a simple method. We demonstrate charge-carrier separation takes place only in MoO3 layer. Stacked WOLED with better performance was obtained by adjusting the thickness of MoO3. The stacked WOLED with efficiency of 39.2 cd/A has excellent color stability with the Commission Internationale de l’Eclairage coordinates only changing from (0.407, 0.405) to (0.398, 0.397) when luminance increases from 22 to 10 000 cd/m2.