Study on red fluorescent top-emitting organic light-emitting devices using a phosphorescent sensitizer

被引：0

作者：

Zhang, Lei ^{[1
]}

Jiang, Quan ^{[1
]}

Zhong, Jian ^{[1
]}

Lin, Hui ^{[1
]}

Hu, Yuan ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Display Sci & Technol Key Lab Sichuan Prov, Sch Optoelect Informat, Chengdu 610054, Peoples R China

来源：

6TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: OPTOELECTRONIC MATERIALS AND DEVICES FOR SENSING, IMAGING, AND SOLAR ENERGY | 2012年 / 8419卷

关键词：

red emission; iridium complex; phosphor-sensitizer; energy transfer; DIODES;

D O I：

10.1117/12.2010716

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

To improve the low efficiency and color impurity in red fluorescent top-emitting organic light-emitting devices (OLEDs), a yellow phosphorescent iridium complex of bis[2-(4-tertbutylphenyl)benzothiazolato-N,C2'] iridium (acetylacetonate) [(t-bt)(2)Ir(acac)] was introduced to a red device with a fluorescent material 3-(dicyanomethylene)-5,5-dimethyl-1-(4-dimethylamino-styryl) cyclohexene (DCDDC), respectively. By adjusting the concentration of DCDDC dye, the luminescence spectra and electrics characteristics of various devices were investigated. The results showed that the performance of the fluorescent-phosphor-sensitized devices were significant improved comparing to the traditional red fluorescent devices. The function of phosphor-sensitizer in energy transfer mechanism was analyzed. The affects of phosphor-sensitizer in these co-doped red OLED were discussed.

引用

页数：6

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