Highly efficient non-doped blue-light-emitting diodes based on an anthrancene derivative end-capped with tetraphenylethylene groups

被引：246

作者：

Shih, Ping-I ^{[1
]}

Chuang, Chu-Ying ^{[1
]}

Chien, Chen-Han ^{[1
]}

Diau, Eric Wei-Guang ^{[1
]}

Shu, Ching-Fong ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Appl Chem, Hsinchu 300, Taiwan

来源：

ADVANCED FUNCTIONAL MATERIALS | 2007年 / 17卷 / 16期

关键词：

D O I：

10.1002/adfm.200700355

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel blue-emitting material, 2-tert-butyl-9,10-bis[4-(1,2,2-triphenylvinyl)phenyl]anthracene (TPVAn), which contains an anthracene core and two tetraphenylethylene end-capped groups, has been synthesized and characterized. Owing to the presence of its sterically congested terminal groups, TPVAn possesses a high glass transition temperature (155 degrees C) and is morphologically stable. Organic light-emitting diodes (OLEDs) utilizing TPVAn as the emitter exhibit bright saturated-blue emissions (Commission Internationale de L'Eclairage (CIE) chromaticity coordinates of x = 0.14 and y = 0.12) with efficiencies as high as 5.3% (5.3 cd A(-1)) - the best performance of non-doped deep blue-emitting OLEDs reported to date. In addition, TPVAn doped with an orange fluorophore served as an authentic host for the construction of a white-light-emitting device that displayed promising electroluminescent characteristics: the maximum external quantum efficiency reached 4.9% (13.1 cd A(-1)) with CIE coordinates located at (0.33, 0.39).

引用

页码：3141 / 3146

页数：6

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