White polymer light-emitting devices from ternary-polymer blend with concentration gradient

Jong Hyeok Park; Tae Woo Lee; Young Chul Kim; O. Ok Park; Jai Kyeong Kim

doi:10.1016/j.cplett.2004.12.119

White polymer light-emitting devices from ternary-polymer blend with concentration gradient

Jong Hyeok Park, Tae Woo Lee, Young Chul Kim, O. Ok Park, Jai Kyeong Kim

Department of Chemical and Biomolecular Engineering

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

40 Citations (Scopus)

Abstract

We have fabricated a white polymer light-emitting-diode bilayer structure that contains a ternary polymer blend. The first layer of poly(9-vinylcarbazole) acts as an energy donor and electron blocker, and the second layer comprising an immiscible polymer blend of two light-emitting polymers, poly(9,9′- dihexylfluorene-2,7-divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) and poly(2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylenevinylene), emits light. The emissive white color of the device was observed to be practically independent of the driving voltage (near CIE coordinate; 0.33, 0.33). In addition, it shows greatly enhanced luminous efficiency compared to a ternary blended white light-emitting-diode.

Original language	English
Pages (from-to)	293-297
Number of pages	5
Journal	Chemical Physics Letters
Volume	403
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2004.12.119
Publication status	Published - 2005 Feb 25

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/j.cplett.2004.12.119

Cite this

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title = "White polymer light-emitting devices from ternary-polymer blend with concentration gradient",

abstract = "We have fabricated a white polymer light-emitting-diode bilayer structure that contains a ternary polymer blend. The first layer of poly(9-vinylcarbazole) acts as an energy donor and electron blocker, and the second layer comprising an immiscible polymer blend of two light-emitting polymers, poly(9,9′- dihexylfluorene-2,7-divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) and poly(2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylenevinylene), emits light. The emissive white color of the device was observed to be practically independent of the driving voltage (near CIE coordinate; 0.33, 0.33). In addition, it shows greatly enhanced luminous efficiency compared to a ternary blended white light-emitting-diode.",

author = "Park, {Jong Hyeok} and Lee, {Tae Woo} and Kim, {Young Chul} and Park, {O. Ok} and Kim, {Jai Kyeong}",

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T1 - White polymer light-emitting devices from ternary-polymer blend with concentration gradient

AU - Park, Jong Hyeok

AU - Lee, Tae Woo

AU - Kim, Young Chul

AU - Park, O. Ok

AU - Kim, Jai Kyeong

PY - 2005/2/25

Y1 - 2005/2/25

N2 - We have fabricated a white polymer light-emitting-diode bilayer structure that contains a ternary polymer blend. The first layer of poly(9-vinylcarbazole) acts as an energy donor and electron blocker, and the second layer comprising an immiscible polymer blend of two light-emitting polymers, poly(9,9′- dihexylfluorene-2,7-divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) and poly(2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylenevinylene), emits light. The emissive white color of the device was observed to be practically independent of the driving voltage (near CIE coordinate; 0.33, 0.33). In addition, it shows greatly enhanced luminous efficiency compared to a ternary blended white light-emitting-diode.

AB - We have fabricated a white polymer light-emitting-diode bilayer structure that contains a ternary polymer blend. The first layer of poly(9-vinylcarbazole) acts as an energy donor and electron blocker, and the second layer comprising an immiscible polymer blend of two light-emitting polymers, poly(9,9′- dihexylfluorene-2,7-divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) and poly(2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylenevinylene), emits light. The emissive white color of the device was observed to be practically independent of the driving voltage (near CIE coordinate; 0.33, 0.33). In addition, it shows greatly enhanced luminous efficiency compared to a ternary blended white light-emitting-diode.

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JO - Chemical Physics Letters

JF - Chemical Physics Letters

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ER -

White polymer light-emitting devices from ternary-polymer blend with concentration gradient

Abstract

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