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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 102 time in
Web of Science
Cited 117 time in Scopus
- Authors
- 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
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