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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
Author(s) -
Yook Kyoung Soo,
Jang Sang Eok,
Jeon Soon Ok,
Lee Jun Yeob
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201002034
Subject(s) - phosphorescence , materials science , phosphorescent organic light emitting diode , optoelectronics , oled , layer (electronics) , diode , quantum efficiency , fabrication , blue light , exciton , nanotechnology , optics , fluorescence , medicine , physics , alternative medicine , pathology , quantum mechanics
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.