Carboline modified dibenzofuran as a high triplet host material for blue phosphorescent organic light-emitting diodes

Yirang Im; Jun Yeob Lee

doi:10.1016/j.dyepig.2014.10.009

Carboline modified dibenzofuran as a high triplet host material for blue phosphorescent organic light-emitting diodes

Yirang Im, Jun Yeob Lee

Dankook University

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

A carboline modified dibenzofuran compound, 2,8-bis(pyrido[2,3-b]indol-9-yl)dibenzofuran (DBFCb), was synthesized and evaluated as the host material for blue phosphorescent organic light-emitting diodes by doping iridium (III) bis((3,5-difluorophenyl)pyridine) picolinate (FIrpic) as a blue triplet emitter. The DBFCb host showed balanced charge density in the emitting layer and a triplet energy of 2.88 eV by carboline moiety. The FIrpic doped DBFCb devices realized high external quantum efficiency of 21.3% at a low doping concentration of 3%.

Original language	English
Pages (from-to)	743-747
Number of pages	5
Journal	Dyes and Pigments
Volume	113
DOIs	https://doi.org/10.1016/j.dyepig.2014.10.009
State	Published - Feb 2015
Externally published	Yes

Keywords

Blue device
Carboline
Charge balance
Dibenzofuran
High quantum efficiency
Triplet energy

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10.1016/j.dyepig.2014.10.009

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@article{0a42d28ad4744091bb406352822ec235,

title = "Carboline modified dibenzofuran as a high triplet host material for blue phosphorescent organic light-emitting diodes",

abstract = "A carboline modified dibenzofuran compound, 2,8-bis(pyrido[2,3-b]indol-9-yl)dibenzofuran (DBFCb), was synthesized and evaluated as the host material for blue phosphorescent organic light-emitting diodes by doping iridium (III) bis((3,5-difluorophenyl)pyridine) picolinate (FIrpic) as a blue triplet emitter. The DBFCb host showed balanced charge density in the emitting layer and a triplet energy of 2.88 eV by carboline moiety. The FIrpic doped DBFCb devices realized high external quantum efficiency of 21.3\% at a low doping concentration of 3\%.",

keywords = "Blue device, Carboline, Charge balance, Dibenzofuran, High quantum efficiency, Triplet energy",

author = "Yirang Im and Lee, \{Jun Yeob\}",

year = "2015",

month = feb,

doi = "10.1016/j.dyepig.2014.10.009",

language = "English",

volume = "113",

pages = "743--747",

journal = "Dyes and Pigments",

issn = "0143-7208",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Carboline modified dibenzofuran as a high triplet host material for blue phosphorescent organic light-emitting diodes

AU - Im, Yirang

AU - Lee, Jun Yeob

PY - 2015/2

Y1 - 2015/2

N2 - A carboline modified dibenzofuran compound, 2,8-bis(pyrido[2,3-b]indol-9-yl)dibenzofuran (DBFCb), was synthesized and evaluated as the host material for blue phosphorescent organic light-emitting diodes by doping iridium (III) bis((3,5-difluorophenyl)pyridine) picolinate (FIrpic) as a blue triplet emitter. The DBFCb host showed balanced charge density in the emitting layer and a triplet energy of 2.88 eV by carboline moiety. The FIrpic doped DBFCb devices realized high external quantum efficiency of 21.3% at a low doping concentration of 3%.

AB - A carboline modified dibenzofuran compound, 2,8-bis(pyrido[2,3-b]indol-9-yl)dibenzofuran (DBFCb), was synthesized and evaluated as the host material for blue phosphorescent organic light-emitting diodes by doping iridium (III) bis((3,5-difluorophenyl)pyridine) picolinate (FIrpic) as a blue triplet emitter. The DBFCb host showed balanced charge density in the emitting layer and a triplet energy of 2.88 eV by carboline moiety. The FIrpic doped DBFCb devices realized high external quantum efficiency of 21.3% at a low doping concentration of 3%.

KW - Blue device

KW - Carboline

KW - Charge balance

KW - Dibenzofuran

KW - High quantum efficiency

KW - Triplet energy

UR - https://www.scopus.com/pages/publications/84930656788

U2 - 10.1016/j.dyepig.2014.10.009

DO - 10.1016/j.dyepig.2014.10.009

M3 - Article

AN - SCOPUS:84930656788

SN - 0143-7208

VL - 113

SP - 743

EP - 747

JO - Dyes and Pigments

JF - Dyes and Pigments

ER -

Carboline modified dibenzofuran as a high triplet host material for blue phosphorescent organic light-emitting diodes

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Keywords

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