Title of article
A thermally stable bipolar host material for blue phosphorescent organic light-emitting diodes
Author/Authors
Jeong، نويسنده , , Sook Hee and Lee، نويسنده , , Jun Yeob، نويسنده ,
Issue Information
دوماهنامه با شماره پیاپی سال 2013
Pages
4
From page
1
To page
4
Abstract
A dibenzofuran based host material, 9,9′-(4-(diphenylphosphoryl)dibenzo[b,d]furan-2,8-diyl)bis(9H-carbazole) (DBFDCzPO), was developed as a thermally stable high triplet energy host material for blue phosphorescent organic light-emitting diodes (PHOLEDs). DBFDCzPO showed high triplet energy of 2.89 eV and stable film morphology up to 130 °C. DBFDCzPO was compared 2,8-di(9H-carbazol-9-yl)dibenzo[b,d]furan and exhibited better device performances. A high quantum efficiency of 17.6% was achieved in the blue PHOLEDs using the DBFDCzPO host material.
Keywords
Dibenzofuran , Phosphorescence , High triplet energy , Bipolar host , thermal stability
Journal title
Synthetic Metals
Serial Year
2013
Journal title
Synthetic Metals
Record number
2089889
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