Enhanced stability of organic light-emitting devices fabricated under ultra-high vacuum condition

被引：44

作者：

Ikeda, Takeshi

Murata, Hideyuki

Kinoshita, Yoshiki

Shike, Junichi

Ikeda, Yoshikazu

Kitano, Masahiro

机构：

[1] Japan Adv Inst Sci & Technol, Sch Mat Sci, Nomi, Ishikawa 9231292, Japan

[2] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan

[3] Kitamo Seiki Co Ltd, Tokyo 1430024, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2006年 / 426卷 / 1-3期

关键词：

D O I：

10.1016/j.cplett.2006.06.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Studies on the intrinsic degradation of organic light-emitting devices (OLEDs) based on tris(8-hydroxyquinolinolato)aluminum (III) (Alq(3)) revealed that the operation stability of the OLEDs depends on the process pressure during device fabrication. Lowering of the pressure resulted in stable devices. In sharp contrast, differences in the initial device characteristics were marginal in all devices. Analyses with a quadrupole mass spectrometer indicated that the primary difference in the pressure during device fabrication was attributable to the amount of residual water. The results show that the degradation of OLEDs is associated with the electrochemical reaction of Alq(3) with water. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：111 / 114

页数：4

共 11 条

[1] Degradation mechanism of small molecule-based organic light-emitting devices [J].