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Relationship Between Host Energy Levels and Device Performances of Phosphorescent Organic Light-Emitting Diodes with Triplet Mixed Host Emitting Structure

Cited 101 time in Web of Science Cited 113 time in Scopus
Authors
Kim, Sung Hyun; Jang, Jyongsik; Lee, Jun Yeob
Issue Date
2007-08-23
Publisher
American Institute of Physics
Citation
APPLIED PHYSICS LETTERS 91, 083511
Abstract
Green phosphorescent organic light-emitting diodes (PHOLEDs) with a triplet mixed host emitting
layer were developed and device performances were studied by changing host materials in
light-emitting layer. Power efficiency of green PHOLEDs could be improved from
12.7 to 29.1 lm/W by using triplet mixed host emitting layer. Combination of hole-transport-type
host with good hole injection properties and electron-transport-type host with good electron
injection properties was effective to get high efficiency in triplet mixed host devices.
ISSN
0003-6951
Language
English
URI
http://hdl.handle.net/10371/49106
DOI
https://doi.org/10.1063/1.2773941
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Journal Papers (저널논문_화학생물공학부)
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