External Quantum Efficiency Above 20% in Deep Blue Phosphorescent Organic Light-Emitting Diodes
作者:Soon Ok Jeon、Sang Eok Jang、Hyo Suk Son、Jun Yeob Lee
DOI:10.1002/adma.201004372
日期:2011.3.25
Highly efficient deep blue phosphorescent organic light‐emitting diodes (PHOLEDs) with external quantum efficiency above 20% are developed using a bipolar‐type high‐triplet‐energy host material and a high‐triplet‐energy exciton blocking material. Maximum quantum efficiency of 25.1% and low roll‐off (still 23.1% at 1000 cd m−2) are achieved in these deep blue PHOLEDs.
使用双极型高三重态能量主体材料和高三重态能量激子阻挡材料,开发了外部量子效率超过20%的高效深蓝色磷光有机发光二极管(PHOLED)。在这些深蓝色PHOLED中,实现了25.1%的最大量子效率和较低的滚降(在1000 cd m -2时仍为23.1%)。