Thermally stable indoloacridine type host material for high efficiency blue phosphorescent organic light-emitting diodes
被引:16
作者:
Seo, Jeong-A
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Dankook Univ, Dept Nanobiomed Sci, Chungnam 330714, South Korea
Dankook Univ, PLUS NBM Global Res Ctr Regenerat Med BK21, Chungnam 330714, South KoreaDankook Univ, Dept Nanobiomed Sci, Chungnam 330714, South Korea
Seo, Jeong-A
[1
,2
]
Gong, Myoung Seon
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Dankook Univ, Dept Nanobiomed Sci, Chungnam 330714, South Korea
Dankook Univ, PLUS NBM Global Res Ctr Regenerat Med BK21, Chungnam 330714, South KoreaDankook Univ, Dept Nanobiomed Sci, Chungnam 330714, South Korea
Gong, Myoung Seon
[1
,2
]
Lee, Jun Yeob
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Dankook Univ, Dept Polymer Sci & Engn, Yongin 448701, Gyeonggi Do, South KoreaDankook Univ, Dept Nanobiomed Sci, Chungnam 330714, South Korea
Lee, Jun Yeob
[3
]
机构:
[1] Dankook Univ, Dept Nanobiomed Sci, Chungnam 330714, South Korea
[2] Dankook Univ, PLUS NBM Global Res Ctr Regenerat Med BK21, Chungnam 330714, South Korea
[3] Dankook Univ, Dept Polymer Sci & Engn, Yongin 448701, Gyeonggi Do, South Korea
High triplet energy materials derived from carbazole or alpha-carboline modified indoloacridine were synthesized and device characteristics of blue triplet emitter doped devices were investigated. The indoloacridine derived host materials showed a high triplet energy above 2.80 eV and a high glass transition temperature over 170 degrees C due to rigid nature of the molecular structure. The indoloacridine based host materials could approach high external quantum efficiency above 20% in blue phosphorescent organic light-emitting diodes. (C) 2014 Elsevier B.V. All rights reserved.