TITLE

Polymer electrophosphorescence devices with high power conversion efficiencies

AUTHOR(S)
Yang, X. H.; Neher, D.
PUB. DATE
April 2004
SOURCE
Applied Physics Letters;4/5/2004, Vol. 84 Issue 14, p2476
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We demonstrate efficient single-layer polymer phosphorescent light-emitting devices based on a green-emitting iridium complex and a polymer host co-doped with electron-transporting and hole-transporting molecules. These devices can be operated at relatively low voltages, resulting in a power conversion efficiency of up to 24 lm/W at luminous efficiencies exceeding 30 cd/A. The overall performances of these devices suggest that efficient electrophosphorescent devices with acceptable operating voltages can be achieved in very simple device structures fabricated by spin coating. © 2004 American Institute of Physics.
ACCESSION #
12715497

 

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