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Low-voltage driving three-peak white organic light emitting diodes with color conversion hole injection layer based on host-guest energy transfer

被引：6
作者：
Li, Chong
Wei, Bin
Kawaguchi, Koji
Saito, Tetsuya
Kimura, Hiroshi
Ichikawa, Musubu
Taniguchi, Yoshio
机构：
[1] Shinshu Univ, Dept Funct Polymer, Nagano 3868567, Japan
[2] Shanghai Univ, Minist Educ, Key Lab Adv Display & Syst Applicat, Shanghai 200072, Peoples R China
[3] Fuji Elect Adv Technol Co Ltd, Organ Electroluminescent Dev Dept, Nagano 3900821, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2007年 / 46卷 / 11期
关键词：
white organic light emitting diodes; color conversion; hole injection; energy transfer;
D O I：
10.1143/JJAP.46.7487
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report a highly chromatic stable white organic light-emitting device (WOLED) with three peaks at 470, 5 10, and 600nm, which is produced by a greenish-blue-emitting layer and a color conversion hole injection layer (CC-HIL) doped with a red dye. The host material in CC-HIL can absorb electroluminescence emission and transfer energy to the dye guest as determined on the basis of host-guest energy transfer. The voltage to drive the device is only 12 V at a current density of 1.0 A/cm(2) and the external quantum efficiency reaches 3.5%. The WOLED was demonstrated to maintain chromatic stability under current densities of up to 1.0A/cm(2) and long operation.
引用
收藏
页码：7487 / 7489
页数：3
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