High-efficiency blue light-emitting electrophosphorescent device with conjugated polymers as the host

被引：88

作者：

Zhang, XJ ^{[1
]}

Jiang, CY ^{[1
]}

Mo, YQ ^{[1
]}

Xu, YH ^{[1
]}

Shi, HH ^{[1
]}

Cao, Y ^{[1
]}

机构：

[1] S China Univ Technol, Inst Polymer Optoelect Mat & Devices, Key Lab Specially Funct Mat & Adv Mfg Technol, Guangzhou 510640, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 05期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2167788

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Highly efficient blue polymer phosphorescent organic light-emitting diode (PPHOLED)-containing iridium(III) bis (2,4-difluorophenyl-2-pyridine) (2-(4H-1, 2, 4-triazol-3-yl)pyridine) [Ir(PPF)(2)(PZ)] complex embedded into wide-gap poly (9,9(')-alkyl-3, 6-silafluorene) (PSiFC6C6) has been fabricated. Despite the significant quenching of photophosphorescence emission of the iridium complexes by a PSiFC6C6 host polymer, organic light-emitting diodes containing Ir(PPF)(2)(PZ) doped into the polymer host PSiFC6C6 emit high-efficiency blue light peaked at 462 nm. The maximal external quantum and luminance efficiencies were, respectively, 4.8% photons/electrons and 7.2 cd/A at 644 cd/m(2) and with Commission Internationale de l'Eclairage coordinates of (0.15,0.26). (c) 2006 American Institute of Physics.

引用

页码：1 / 3

页数：3

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