Fabrication and Efficiency Improvement of Soluble Blue Phosphorescent Organic Light-Emitting Diodes Using a Multilayer Structure Based on an Alcohol-Soluble Blue Phosphorescent Emitting Layer

Highly efficient soluble blue phosphorescent organic light emitting diodes have been developed using a multilayer device structure based on alcohol soluble blue phosphorescent emitting layer. A device structure with double emitting layer and an exciton blocking layer could be fabricated due to ortho...

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Veröffentlicht in:	Advanced materials (Weinheim) 2010-10, Vol.22 (40), p.4479-4483
Hauptverfasser:	Yook, Kyoung Soo, Jang, Sang Eok, Jeon, Soon Ok, Lee, Jun Yeob
Format:	Artikel
Sprache:	eng
Schlagworte:	alcohol soluble phosphorescent emitting layer Alcohols - chemistry Electrochemistry high efficiency Luminescence Luminescent Agents - chemistry Optics and Photonics - economics Optics and Photonics - instrumentation Oxides - chemistry phosphine oxide Phosphines - chemistry Solubility soluble blue phosphorescent organic light-emitting diodes
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Beschreibung
Zusammenfassung:	Highly efficient soluble blue phosphorescent organic light emitting diodes have been developed using a multilayer device structure based on alcohol soluble blue phosphorescent emitting layer. A device structure with double emitting layer and an exciton blocking layer could be fabricated due to orthogonal film formation and a high quantum efficiency of 14.1% and a current efficiency of 30.4 cd/A were achieved in the soluble blue phosphorescent organic light emitting diodes.
ISSN:	0935-9648 1521-4095
DOI:	10.1002/adma.201002034