Uniform dispersion of triplet emitters in multi-layer solution-processed organic light-emitting diodes

Sheng Yang Huang; Hsin Fei Meng; Heh Lung Huang; Teng Chih Chao; Mei Rurng Tseng; Yu Chiang Chao; Sheng Fu Horng

doi:10.1016/j.synthmet.2010.09.015

Uniform dispersion of triplet emitters in multi-layer solution-processed organic light-emitting diodes

Sheng Yang Huang, Hsin Fei Meng^*, Heh Lung Huang, Teng Chih Chao, Mei Rurng Tseng, Yu Chiang Chao, Sheng Fu Horng

^*Corresponding author for this work

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

33 Citations (Scopus)

Abstract

The influence of the iridium complex solubility on the efficiency of multi-layer solution-processed organic light-emitting diode is demonstrated by synthesized orange triplet iridium complexes with the same core. The solubility of the iridium(III) bis(4-phenylthieno[3,2-c]pyridinato-N,C²′) acetylacetonate is increased and uniform dispersion of iridium complex in polymer host poly(vinylcarbazole) is achieved by tert-butyl and n-hexyl group modification. Blade coating technique is utilized to achieve tri-layer structures with a polymer hole-transporting layer poly[(9,9-dioctylfluorenyl-2, 7-diyl)-co-(4,4′-(N-(4-s-butylphenyl))diphenylamine)], a host-guest emissive layer, and small-molecule hole-blocking layer 1,3,5-tris(N- phenylbenzimidazol-2-yl) benzene. The efficiency as high as 20 cd/A is achieved for orange-emitting device.

Original language	English
Pages (from-to)	2393-2396
Number of pages	4
Journal	Synthetic Metals
Volume	160
Issue number	23-24
DOIs	https://doi.org/10.1016/j.synthmet.2010.09.015
Publication status	Published - 2010 Dec
Externally published	Yes

Keywords

Polymer light-emitting diodes
Triplet emitters

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.2010.09.015

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title = "Uniform dispersion of triplet emitters in multi-layer solution-processed organic light-emitting diodes",

abstract = "The influence of the iridium complex solubility on the efficiency of multi-layer solution-processed organic light-emitting diode is demonstrated by synthesized orange triplet iridium complexes with the same core. The solubility of the iridium(III) bis(4-phenylthieno[3,2-c]pyridinato-N,C2′) acetylacetonate is increased and uniform dispersion of iridium complex in polymer host poly(vinylcarbazole) is achieved by tert-butyl and n-hexyl group modification. Blade coating technique is utilized to achieve tri-layer structures with a polymer hole-transporting layer poly[(9,9-dioctylfluorenyl-2, 7-diyl)-co-(4,4′-(N-(4-s-butylphenyl))diphenylamine)], a host-guest emissive layer, and small-molecule hole-blocking layer 1,3,5-tris(N- phenylbenzimidazol-2-yl) benzene. The efficiency as high as 20 cd/A is achieved for orange-emitting device.",

keywords = "Polymer light-emitting diodes, Triplet emitters",

author = "Huang, {Sheng Yang} and Meng, {Hsin Fei} and Huang, {Heh Lung} and Chao, {Teng Chih} and Tseng, {Mei Rurng} and Chao, {Yu Chiang} 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 = "2010",

month = dec,

doi = "10.1016/j.synthmet.2010.09.015",

language = "English",

volume = "160",

pages = "2393--2396",

journal = "Synthetic Metals",

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TY - JOUR

T1 - Uniform dispersion of triplet emitters in multi-layer solution-processed organic light-emitting diodes

AU - Huang, Sheng Yang

AU - Meng, Hsin Fei

AU - Huang, Heh Lung

AU - Chao, Teng Chih

AU - Tseng, Mei Rurng

AU - Chao, Yu Chiang

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 - 2010/12

Y1 - 2010/12

N2 - The influence of the iridium complex solubility on the efficiency of multi-layer solution-processed organic light-emitting diode is demonstrated by synthesized orange triplet iridium complexes with the same core. The solubility of the iridium(III) bis(4-phenylthieno[3,2-c]pyridinato-N,C2′) acetylacetonate is increased and uniform dispersion of iridium complex in polymer host poly(vinylcarbazole) is achieved by tert-butyl and n-hexyl group modification. Blade coating technique is utilized to achieve tri-layer structures with a polymer hole-transporting layer poly[(9,9-dioctylfluorenyl-2, 7-diyl)-co-(4,4′-(N-(4-s-butylphenyl))diphenylamine)], a host-guest emissive layer, and small-molecule hole-blocking layer 1,3,5-tris(N- phenylbenzimidazol-2-yl) benzene. The efficiency as high as 20 cd/A is achieved for orange-emitting device.

AB - The influence of the iridium complex solubility on the efficiency of multi-layer solution-processed organic light-emitting diode is demonstrated by synthesized orange triplet iridium complexes with the same core. The solubility of the iridium(III) bis(4-phenylthieno[3,2-c]pyridinato-N,C2′) acetylacetonate is increased and uniform dispersion of iridium complex in polymer host poly(vinylcarbazole) is achieved by tert-butyl and n-hexyl group modification. Blade coating technique is utilized to achieve tri-layer structures with a polymer hole-transporting layer poly[(9,9-dioctylfluorenyl-2, 7-diyl)-co-(4,4′-(N-(4-s-butylphenyl))diphenylamine)], a host-guest emissive layer, and small-molecule hole-blocking layer 1,3,5-tris(N- phenylbenzimidazol-2-yl) benzene. The efficiency as high as 20 cd/A is achieved for orange-emitting device.

KW - Polymer light-emitting diodes

KW - Triplet emitters

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Uniform dispersion of triplet emitters in multi-layer solution-processed organic light-emitting diodes

Abstract

Keywords

ASJC Scopus subject areas

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