Interface and material considerations of OLEDs

被引：13

作者：

Sato, Y ^{[1
]}

Ogata, T ^{[1
]}

Ichinosawa, S ^{[1
]}

Fugono, M ^{[1
]}

Kanai, H ^{[1
]}

机构：

[1] Mitsubishi Chem Corp, Yokohama Res Ctr, Aoba Ku, Yokohama, Kanagawa 2278502, Japan

来源：

ORGANIC LIGHT-EMITTING MATERIALS AND DEVICES III | 1999年 / 3797卷

关键词：

organic electroluminescence; ITO; polymer; interface; thermal stability; blue-emitting device;

D O I：

10.1117/12.372710

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Three interfaces, anode interface, hole blocking layer and cathode interface were considered mainly from the viewpoint of materials. Vinyl polymers containing triphenylamine as a side group were investigated as an ITO buffer layer. When these polymers were doped with strong acceptor, they lowered operation voltage of OLED and also improved the thermal stability. Employment of high Tg hole transport material was also found effective for the thermally stable EL characteristics. Hole blocking material with a wider optical gap improved color purity of blue-emitting device. Various inorganic compounds were examined as a cathode interface layer to demonstrate that MgF2 was effective to improve operation lifetime of OLED.

引用

页码：198 / 208

页数：11

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