Journal article
Degradation processes at the cathode/organic interface in organic light emitting devices with Mg:Ag cathodes
Abstract
We report electroluminescence degradation studies on tris(8-hydroxyquinoline) aluminum (Alq3)-based organic light emitting devices (OLEDs) with Mg:Ag cathodes in ambient conditions. The nonemissive spots in the OLEDs are studied via optical and fluorescence microscopy and via microscopic infrared spectroscopy. Studies reveal that a majority of the nonemissive spots are caused by the growth of Mg(OH)2 sites at the Alq3/Mg:Ag interface, …
Authors
Aziz H; Popovic Z; Tripp CP; Hu N-X; Hor A-M; Xu G
Journal
Applied Physics Letters, Vol. 72, No. 21, pp. 2642–2644
Publisher
AIP Publishing
Publication Date
May 25, 1998
DOI
10.1063/1.121442
ISSN
0003-6951