Efficient electron injection in organic light-emitting diodes using lithium quinolate/Ca/Al cathodes

被引：33

作者：

Kim, Sung Hyun

Jang, Jyongsik

Lee, Jun Yeob ^{[1
]}

机构：

[1] Dankook Univ, Dept Polymer Sci & Engn, Seoul 140714, South Korea

[2] Seoul Natl Univ, Sch Chem & Biol Engn, Seoul 151742, South Korea

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 10期

关键词：

D O I：

10.1063/1.2779105

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Device performances of green devices with cathode structure of lithium quinolate (Liq)/Ca/Al were investigated and electron injection mechanism was studied using ultraviolet photoelectron spectroscopy. Power efficiency could be improved by 70% by using Liq/Ca/Al cathode structure due to efficient electron injection, and interfacial energy barrier lowering by Liq/Ca/Al metal cathode was observed.

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页数：3

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