Please use this identifier to cite or link to this item: http://ktisis.cut.ac.cy/handle/10488/7612
Title: Highly efficient solution processed blue organic electrophosphorescence with 14 lm/W luminous efficacy
Authors: Choulis, Stelios A. 
Mathai, Mathew K. 
Choong, Vi-En 
Keywords: Light emitting diodes
Phosphorescence
Product design
Issue Date: 2006
Publisher: American Institute of Physics
Source: Applied physics letters, 2006, Volume 88, Issue 24, Pages 1-3
Abstract: We report highly efficient solution processed blue electrophosphorescent organic light emitting diodes (PHOLEDs) utilizing a phosphorescent dye and a nonconjugated polymer host, molecularly doped with electron transporting molecules. Based on a bilayer device architecture blue PHOLEDs with luminous efficacy of 14 lm/W at luminous efficiency reaching 22 cd/A are demonstrated. Analysis of device performance indicates that this high efficiency is achieved by a combination of improved charge balance and light outcoupling efficiency. Our results demonstrate that simple solution processed devices can have efficiencies similar to those published to date for small molecule multilayer PHOLEDs based on the same emitter
URI: http://ktisis.cut.ac.cy/handle/10488/7612
ISSN: 0003-6951 (print)
1077-3118 (online)
DOI: 10.1063/1.2212060
Rights: © 2006 American Institute of Physics
metadata.dc.type: Article
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