Electroluminescent properties in organic light-emitting diode doped with two guest dyes

被引：23
|
作者：
Mori, T
Kim, HG
Mizutani, T
Lee, DC
机构：
[1] Nagoya Univ, Grad Sch Engn, Dept Elect Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan
[2] Inha Univ, Dept Elect Engn, Inchon 402751, South Korea
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2001年 / 40卷 / 9A期
关键词：
organic LED; electroluminescence; dye-doping; energy transfer;
D O I：
10.1143/JJAP.40.5346
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An organic light-emitting diode (OLED) with a squarylium dye-doped aluminium, quinoline (A1q3) emission layer prepared by vapor deposition method has a pure red emission. However, since its luminance and electroluminescence (EL) efficiency is poor, the authors attended to improve the EL efficiency by doping a photosensitizer dye (a styryl dye, DCM) in an emission laver. The EL efficiency and luminance of DCM- and Sq-doped OLEDs are 2-3 times higher than those of only Sq-doped OLEDs. It was found that the excited energy is transferred from A1q3 to Sq through DCM.
引用
收藏
页码：5346 / 5349
页数：4
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