Highly efficient solution-processed red organic light-emitting diodes with long-side-chained triplet emitter

Yu Chiang Chao; Sheng Yang Huang; Chun Yu Chen; Yu Fan Chang; Hsin Fei Meng; Feng Wen Yen; I. Feng Lin; Hsiao Wen Zan; Sheng Fu Horng

doi:10.1016/j.synthmet.2010.11.013

Highly efficient solution-processed red organic light-emitting diodes with long-side-chained triplet emitter

Yu Chiang Chao, Sheng Yang Huang, Chun Yu Chen, Yu Fan Chang, Hsin Fei Meng^*, Feng Wen Yen, I. Feng Lin, Hsiao Wen Zan, Sheng Fu Horng

^*Corresponding author for this work

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

29 Citations (Scopus)

Abstract

Newly synthesized red Ir complexes tris[2-(4-n-hexyl-phenyl)quinoline] iridium(III) and tris[(4-n-hexylphenyl)isoquinoline)]iridium(III) with long alkyl side chains are utilized to demonstrate the high efficiency multi-layer solution-processed red organic light-emitting diodes. Solubilities of these triplet emitters are high which enable them to be uniformly dispersed in the polymer host. Blade coating method is utilized to prepare organic multi-layers without mutual dissolution between different layers. 17 cd/A current efficiency, 10 lm/W power efficiency, and 8.8% external quantum efficiency can be achieved for the device with CsF/Al cathode. 10,000 cd/m² is reached at 10 V. Similar quantum efficiency is also achieved with an electron-transport layer and LiF/Al cathode.

Original language	English
Pages (from-to)	148-152
Number of pages	5
Journal	Synthetic Metals
Volume	161
Issue number	1-2
DOIs	https://doi.org/10.1016/j.synthmet.2010.11.013
Publication status	Published - 2011 Jan
Externally published	Yes

Keywords

Ir complexes
Polymer light-emitting diodes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.synthmet.2010.11.013

Cite this

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title = "Highly efficient solution-processed red organic light-emitting diodes with long-side-chained triplet emitter",

abstract = "Newly synthesized red Ir complexes tris[2-(4-n-hexyl-phenyl)quinoline] iridium(III) and tris[(4-n-hexylphenyl)isoquinoline)]iridium(III) with long alkyl side chains are utilized to demonstrate the high efficiency multi-layer solution-processed red organic light-emitting diodes. Solubilities of these triplet emitters are high which enable them to be uniformly dispersed in the polymer host. Blade coating method is utilized to prepare organic multi-layers without mutual dissolution between different layers. 17 cd/A current efficiency, 10 lm/W power efficiency, and 8.8% external quantum efficiency can be achieved for the device with CsF/Al cathode. 10,000 cd/m2 is reached at 10 V. Similar quantum efficiency is also achieved with an electron-transport layer and LiF/Al cathode.",

keywords = "Ir complexes, Polymer light-emitting diodes",

author = "Chao, {Yu Chiang} and Huang, {Sheng Yang} and Chen, {Chun Yu} and Chang, {Yu Fan} and Meng, {Hsin Fei} and Yen, {Feng Wen} and Lin, {I. Feng} and Zan, {Hsiao Wen} and Horng, {Sheng Fu}",

note = "Funding Information: This work is supported by the National Science Council of Taiwan under grant number NSC 98-2120-M-009-003 and NSC 98-2811-M-009-048 .",

year = "2011",

month = jan,

doi = "10.1016/j.synthmet.2010.11.013",

language = "English",

volume = "161",

pages = "148--152",

journal = "Synthetic Metals",

issn = "0379-6779",

publisher = "Elsevier BV",

number = "1-2",

}

TY - JOUR

T1 - Highly efficient solution-processed red organic light-emitting diodes with long-side-chained triplet emitter

AU - Chao, Yu Chiang

AU - Huang, Sheng Yang

AU - Chen, Chun Yu

AU - Chang, Yu Fan

AU - Meng, Hsin Fei

AU - Yen, Feng Wen

AU - Lin, I. Feng

AU - Zan, Hsiao Wen

AU - Horng, Sheng Fu

N1 - Funding Information: This work is supported by the National Science Council of Taiwan under grant number NSC 98-2120-M-009-003 and NSC 98-2811-M-009-048 .

PY - 2011/1

Y1 - 2011/1

N2 - Newly synthesized red Ir complexes tris[2-(4-n-hexyl-phenyl)quinoline] iridium(III) and tris[(4-n-hexylphenyl)isoquinoline)]iridium(III) with long alkyl side chains are utilized to demonstrate the high efficiency multi-layer solution-processed red organic light-emitting diodes. Solubilities of these triplet emitters are high which enable them to be uniformly dispersed in the polymer host. Blade coating method is utilized to prepare organic multi-layers without mutual dissolution between different layers. 17 cd/A current efficiency, 10 lm/W power efficiency, and 8.8% external quantum efficiency can be achieved for the device with CsF/Al cathode. 10,000 cd/m2 is reached at 10 V. Similar quantum efficiency is also achieved with an electron-transport layer and LiF/Al cathode.

AB - Newly synthesized red Ir complexes tris[2-(4-n-hexyl-phenyl)quinoline] iridium(III) and tris[(4-n-hexylphenyl)isoquinoline)]iridium(III) with long alkyl side chains are utilized to demonstrate the high efficiency multi-layer solution-processed red organic light-emitting diodes. Solubilities of these triplet emitters are high which enable them to be uniformly dispersed in the polymer host. Blade coating method is utilized to prepare organic multi-layers without mutual dissolution between different layers. 17 cd/A current efficiency, 10 lm/W power efficiency, and 8.8% external quantum efficiency can be achieved for the device with CsF/Al cathode. 10,000 cd/m2 is reached at 10 V. Similar quantum efficiency is also achieved with an electron-transport layer and LiF/Al cathode.

KW - Ir complexes

KW - Polymer light-emitting diodes

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DO - 10.1016/j.synthmet.2010.11.013

M3 - Article

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SN - 0379-6779

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JO - Synthetic Metals

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IS - 1-2

ER -

Highly efficient solution-processed red organic light-emitting diodes with long-side-chained triplet emitter

Abstract

Keywords

ASJC Scopus subject areas

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