Novel carbazole derivative as a host material for blue phosphorescent organic light-emitting diodes

Jeon, Sang Kyu; Thirupathaiah, Bodakuntla; Kim, Choongik; Lim, Kwon Taek; Lee, Jun Yeob; Seo, Sung Yong

doi:10.1016/j.dyepig.2014.10.025

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Novel carbazole derivative as a host material for blue phosphorescent organic light-emitting diodes

Jeon, Sang Kyu;
Thirupathaiah, Bodakuntla;
Kim, Choongik;
Lim, Kwon Taek;
Lee, Jun Yeob;
외 1명

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초록

A novel bipolar compound with a thiophene modified 9-phenylcarbazole and phosphine oxide moieties, (5-(4-(9H-carbazol-9-yl)phenyl)thiophen-2-yl)diphenylphosphine oxide (CPTPO), was synthesized and characterized as a high triplet energy host material. Bipolar charge transport character and a high triplet energy of 2.72 eV of CPTPO allowed the development of blue phosphorescent organic light-emitting diodes with an external quantum efficiency of 18.4%. (C) 2014 Elsevier Ltd. All rights reserved.

키워드

Carbazole; Phosphine oxide; High triplet energy; Blue phosphorescent device; Bipolar host; Thiophene; HIGH-EFFICIENCY BLUE; ELECTROPHOSPHORESCENT DEVICES; BIPOLAR HOST; BAND-GAP; ENERGY; OLIGOTHIOPHENES; COPOLYMERS; MOIETIES; ACCEPTOR; DESIGN

제목: Novel carbazole derivative as a host material for blue phosphorescent organic light-emitting diodes

저자: Jeon, Sang Kyu; Thirupathaiah, Bodakuntla; Kim, Choongik; Lim, Kwon Taek; Lee, Jun Yeob; Seo, Sung Yong

DOI: 10.1016/j.dyepig.2014.10.025

발행일: 2015-03

유형: Article

저널명: Dyes and Pigments

권: 114

호: C

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