An Ionic Molecular Glass as Electron Injection Layer for Efficient Polymer Light-Emitting Diode

被引：16

作者：

Liu, Gang ^{[1
]}

Li, Ai-Yuan ^{[1
]}

An, Ding ^{[1
]}

Wu, Hong-Bin ^{[1
]}

Zhu, Xu-Hui ^{[1
]}

Li, Yuan ^{[1
]}

Miao, Xin-Rui ^{[1
]}

Deng, Wen-Li ^{[1
]}

Yang, Wei ^{[1
]}

Cao, Yong ^{[1
]}

Roncali, Jean ^{[2
]}

机构：

[1] S China Univ Technol, MOE, Inst Polymer Optoelect Mat & Devices, Key Lab Special Funct Mat, Guangzhou 510640, Guangdong, Peoples R China

[2] Univ Angers, CNRS, CIMA, Grp Linear Conjugated Syst, F-49045 Angers, France

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2009年 / 30卷 / 17期

关键词：

alcohol solubility; conjugated polymers; electron injection; high work function cathodes; light-emitting diodes (LEDs); organic glass; HIGHLY EFFICIENT; NEUTRAL SURFACTANT; ALUMINUM; ELECTROLUMINESCENCE; TRANSPORT; DEVICES; CATHODE; VOLTAGE; POLYELECTROLYTES; MORPHOLOGY;

D O I：

10.1002/marc.200900253

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

An ionic molecular glass based on a dendronized monoammonium salt has been facilely synthesized and utilized as an interfacial electron-injection layer in a light-emitting diode (LED). The characterization of a yellow-green LED that involves an Al cathode and a thin layer of the new compound spin cast from a methanol solution has shown device performances comparable to those obtained with a Ba/Al cathode. Photovoltaic measurements under white light irradiation reveal that a thin layer of the new compound can significantly increase the built-in potential and thus facilitate electron injection from an Al cathode. Furthermore, it is interesting to observe that the new ionic salt could undergo reorganization on the emissive conjugated polymer layer, which leads to the formation of nearly uniform nanoaggregates.

引用

页码：1484 / 1491

页数：8

共 55 条

[31] High-efficiency polymer light-emitting diodes using neutral surfactant modified aluminum cathode [J].