Title
High-efficiency small molecule light-emitting diodes by spin-coating for orange, blue and white emission High-efficiency small molecule light-emitting diodes by spin-coating for orange, blue and white emission
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
conferenceObject
Publication
Subject
Physics
Source (journal)
Proceeding of the tenth international workshop on the physics of semiconductor devices, vols I and II
Source (book)
10th International Workshop on the Physics of Semiconductor Devices, (IWPSD 99), DEC 14-18, 1999, New Delhi, India
Volume/pages
3975(2000) :Part 1&2 , p. 1141-1146
ISSN
0277-786X
ISBN
0-8194-3601-1
ISI
000088363600225
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
Abstract
We present efficient organic light emitting diodes (OLEDs) which have a single organic layer, applied by spin-coating, and air-stable Al cathodes. The organic layer consists of a spin-coated thin film of polystyrene in which various active materials were dispersed. For orange emission, Alq(3) and rubrene are used as active material; for blue, a phenylene-vinylene trimer (1,4-bis(l,l-dipheny1-2-ethenyl)benzene) is used. Also white light emission has been achieved by combining the molecules for orange and blue emission. We discuss the fabrication process, the characteristics, and the dependence of the OLED properties on the concentrations of the various active materials.
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