High-efficiency blue-green electrophosphorescent light-emitting devices using a bis-sulfone as host in the emitting layer

Sung Jin Kim; Julie Leroy; Carlos Zuniga; Yadong Zhang; Lingyun Zhu; John S. Sears; Stephen Barlow; Jean Luc Brédas; Seth R. Marder; Bernard Kippelen

doi:10.1016/j.orgel.2011.04.015

High-efficiency blue-green electrophosphorescent light-emitting devices using a bis-sulfone as host in the emitting layer

Sung Jin Kim, Julie Leroy, Carlos Zuniga, Yadong Zhang, Lingyun Zhu, John S. Sears, Stephen Barlow, Jean Luc Brédas, Seth R. Marder, Bernard Kippelen^*

^*Corresponding author for this work

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

29 Scopus citations

Abstract

A bis-sulfone small molecule, 4,4′-bis(phenylsulfonyl)biphenyl has been evaluated as a host for the phosphor iridium(III) bis(2-(4,6- difluorophenyl)pyridinato-N,C^2′)picolinate in blue-green organic light-emitting devices. In addition, a poly(norbornene)-based polymer functionalized with a 3,6-bis(carbazol-9-yl)carbazole moiety as a side group is utilized as a solution-processible hole-transport layer; comparison is made to the widely-used hole-transport polymer poly(N-vinylcarbazole) (PVK). At 100 cd/m², the highest efficiency device incorporating the new polymer achieved an external quantum efficiency (EQE) of 6.9% (12.9 cd/A) with a turn-on voltage of 4.3 V. In comparison, the highest efficiency device using PVK achieved an EQE of 6.4% (11.3 cd/A) with a turn-on voltage of 6.0 V.

Original language	English (US)
Pages (from-to)	1314-1318
Number of pages	5
Journal	Organic Electronics
Volume	12
Issue number	8
DOIs	https://doi.org/10.1016/j.orgel.2011.04.015
State	Published - Aug 2011
Externally published	Yes

Keywords

Organic light emitting diodes
Phosphorescence

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
General Chemistry
Condensed Matter Physics
Materials Chemistry
Electrical and Electronic Engineering

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10.1016/j.orgel.2011.04.015

Cite this

@article{a36f8714cee64c6d87cb4abde8eeab3a,

title = "High-efficiency blue-green electrophosphorescent light-emitting devices using a bis-sulfone as host in the emitting layer",

abstract = "A bis-sulfone small molecule, 4,4′-bis(phenylsulfonyl)biphenyl has been evaluated as a host for the phosphor iridium(III) bis(2-(4,6- difluorophenyl)pyridinato-N,C2′)picolinate in blue-green organic light-emitting devices. In addition, a poly(norbornene)-based polymer functionalized with a 3,6-bis(carbazol-9-yl)carbazole moiety as a side group is utilized as a solution-processible hole-transport layer; comparison is made to the widely-used hole-transport polymer poly(N-vinylcarbazole) (PVK). At 100 cd/m2, the highest efficiency device incorporating the new polymer achieved an external quantum efficiency (EQE) of 6.9% (12.9 cd/A) with a turn-on voltage of 4.3 V. In comparison, the highest efficiency device using PVK achieved an EQE of 6.4% (11.3 cd/A) with a turn-on voltage of 6.0 V.",

keywords = "Organic light emitting diodes, Phosphorescence",

author = "Kim, {Sung Jin} and Julie Leroy and Carlos Zuniga and Yadong Zhang and Lingyun Zhu and Sears, {John S.} and Stephen Barlow and Br{\'e}das, {Jean Luc} and Marder, {Seth R.} and Bernard Kippelen",

note = "Funding Information: This material is based upon work supported by Solvay SA and in part by the STC Program of the National Science Foundation under Agreement No. DMR-0120967. We are grateful to Jean-Pierre Catinat and V{\'e}ronique Mathieu for measuring the adiabatic triplet energy of SO1.",

year = "2011",

month = aug,

doi = "10.1016/j.orgel.2011.04.015",

language = "English (US)",

volume = "12",

pages = "1314--1318",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier",

number = "8",

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TY - JOUR

T1 - High-efficiency blue-green electrophosphorescent light-emitting devices using a bis-sulfone as host in the emitting layer

AU - Kim, Sung Jin

AU - Leroy, Julie

AU - Zuniga, Carlos

AU - Zhang, Yadong

AU - Zhu, Lingyun

AU - Sears, John S.

AU - Barlow, Stephen

AU - Brédas, Jean Luc

AU - Marder, Seth R.

AU - Kippelen, Bernard

N1 - Funding Information: This material is based upon work supported by Solvay SA and in part by the STC Program of the National Science Foundation under Agreement No. DMR-0120967. We are grateful to Jean-Pierre Catinat and Véronique Mathieu for measuring the adiabatic triplet energy of SO1.

PY - 2011/8

Y1 - 2011/8

N2 - A bis-sulfone small molecule, 4,4′-bis(phenylsulfonyl)biphenyl has been evaluated as a host for the phosphor iridium(III) bis(2-(4,6- difluorophenyl)pyridinato-N,C2′)picolinate in blue-green organic light-emitting devices. In addition, a poly(norbornene)-based polymer functionalized with a 3,6-bis(carbazol-9-yl)carbazole moiety as a side group is utilized as a solution-processible hole-transport layer; comparison is made to the widely-used hole-transport polymer poly(N-vinylcarbazole) (PVK). At 100 cd/m2, the highest efficiency device incorporating the new polymer achieved an external quantum efficiency (EQE) of 6.9% (12.9 cd/A) with a turn-on voltage of 4.3 V. In comparison, the highest efficiency device using PVK achieved an EQE of 6.4% (11.3 cd/A) with a turn-on voltage of 6.0 V.

AB - A bis-sulfone small molecule, 4,4′-bis(phenylsulfonyl)biphenyl has been evaluated as a host for the phosphor iridium(III) bis(2-(4,6- difluorophenyl)pyridinato-N,C2′)picolinate in blue-green organic light-emitting devices. In addition, a poly(norbornene)-based polymer functionalized with a 3,6-bis(carbazol-9-yl)carbazole moiety as a side group is utilized as a solution-processible hole-transport layer; comparison is made to the widely-used hole-transport polymer poly(N-vinylcarbazole) (PVK). At 100 cd/m2, the highest efficiency device incorporating the new polymer achieved an external quantum efficiency (EQE) of 6.9% (12.9 cd/A) with a turn-on voltage of 4.3 V. In comparison, the highest efficiency device using PVK achieved an EQE of 6.4% (11.3 cd/A) with a turn-on voltage of 6.0 V.

KW - Organic light emitting diodes

KW - Phosphorescence

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DO - 10.1016/j.orgel.2011.04.015

M3 - Article

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SP - 1314

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JO - Organic Electronics

JF - Organic Electronics

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ER -

High-efficiency blue-green electrophosphorescent light-emitting devices using a bis-sulfone as host in the emitting layer

Abstract

Keywords

ASJC Scopus subject areas

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