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Title: Single-layer organic light-emitting diode with 2.0% external quantum efficiency prepared by spin-coating
Authors: Jin, YD ×
Yang, JP
Heremans, PL
Van der Auweraer, Mark
Rousseau, Els
Geise, HJ
Borghs, Gustaaf #
Issue Date: Jan-2000
Publisher: Elsevier science bv
Series Title: Chemical Physics Letters vol:320 issue:5-6 pages:387-392
Abstract: We present a highly efficient organic light-emitting diode with a single-layer structure and air-stable Al cathode. The device consists of a spin-coated thin film of polystyrene in which rubrene and Alq(3) molecules are dispersed. By optimizing the concentration of Alq(3) and rubrene, a maximum external quantum efficiency of 2.0% photons/electron and a current efficiency of 8.5 cd/A at 22 V could be achieved in the device. The high electroluminescence efficiency is attributed to a combination of energy transfer from Alq(3) to rubrene, and direct carrier trapping and recombination on rubrene, followed by an efficient fluorescent emission from rubrene. (C) 2000 Elsevier Science B.V. All rights reserved.
ISSN: 0009-2614
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
Chemistry - miscellaneous
Physics and Astronomy - miscellaneous
× corresponding author
# (joint) last author

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