A bright cadmium-free, hybrid organic/quantum dot white light-emitting diode

We report a bright cadmium-free, InP-based quantum dot light-emitting diode (QD-LED) with efficient green emission. A maximum brightness close to 700 cd/m2 together with a relatively low turn-on voltage of 4.5 V has been achieved. With the design of a loosely packed QD layer resulting in the direct...

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Main Authors: Yang, Xuyong, Divayana, Yoga, Zhao, Dewei, Leck, Kheng Swee, Lu, Fen, Tan, Swee Tiam, Abiyasa, Agus Putu, Zhao, Yongbiao, Demir, Hilmi Volkan, Sun, Xiaowei
Other Authors: School of Physical and Mathematical Sciences
Format: Journal Article
Language:English
Published: 2013
Online Access:https://hdl.handle.net/10356/99089
http://hdl.handle.net/10220/10885
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author Yang, Xuyong
Divayana, Yoga
Zhao, Dewei
Leck, Kheng Swee
Lu, Fen
Tan, Swee Tiam
Abiyasa, Agus Putu
Zhao, Yongbiao
Demir, Hilmi Volkan
Sun, Xiaowei
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Yang, Xuyong
Divayana, Yoga
Zhao, Dewei
Leck, Kheng Swee
Lu, Fen
Tan, Swee Tiam
Abiyasa, Agus Putu
Zhao, Yongbiao
Demir, Hilmi Volkan
Sun, Xiaowei
author_sort Yang, Xuyong
collection NTU
description We report a bright cadmium-free, InP-based quantum dot light-emitting diode (QD-LED) with efficient green emission. A maximum brightness close to 700 cd/m2 together with a relatively low turn-on voltage of 4.5 V has been achieved. With the design of a loosely packed QD layer resulting in the direct contact of poly[N,N′-bis(4-butylphenyl)-N,N′-bis(phenyl)benzidine] (poly-TPD) and 2,2′,2″-(1,3,5-benzinetriyl)-tris(1-phenyl-1-H-benzimidazole) (TPBi) in the device, a ternary complementary white QD-LED consisting of blue component (poly-TPD), green component (QDs), and red component (exciplex formed at the interface between poly-TPD and TPBi) has been demonstrated. The resulting white QD-LED shows an excellent color rendering index of 95.
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spelling ntu-10356/990892023-02-28T19:41:30Z A bright cadmium-free, hybrid organic/quantum dot white light-emitting diode Yang, Xuyong Divayana, Yoga Zhao, Dewei Leck, Kheng Swee Lu, Fen Tan, Swee Tiam Abiyasa, Agus Putu Zhao, Yongbiao Demir, Hilmi Volkan Sun, Xiaowei School of Physical and Mathematical Sciences School of Electrical and Electronic Engineering We report a bright cadmium-free, InP-based quantum dot light-emitting diode (QD-LED) with efficient green emission. A maximum brightness close to 700 cd/m2 together with a relatively low turn-on voltage of 4.5 V has been achieved. With the design of a loosely packed QD layer resulting in the direct contact of poly[N,N′-bis(4-butylphenyl)-N,N′-bis(phenyl)benzidine] (poly-TPD) and 2,2′,2″-(1,3,5-benzinetriyl)-tris(1-phenyl-1-H-benzimidazole) (TPBi) in the device, a ternary complementary white QD-LED consisting of blue component (poly-TPD), green component (QDs), and red component (exciplex formed at the interface between poly-TPD and TPBi) has been demonstrated. The resulting white QD-LED shows an excellent color rendering index of 95. Published version 2013-07-02T03:25:14Z 2019-12-06T20:03:10Z 2013-07-02T03:25:14Z 2019-12-06T20:03:10Z 2012 2012 Journal Article Yang, X., Divayana, Y., Zhao D., Leck, K. S., Lu, F., Tan, S. T., et al. (2012). A bright cadmium-free, hybrid organic/quantum dot white light-emitting diode. Applied Physics Letters, 101(23), 233110-. https://hdl.handle.net/10356/99089 http://hdl.handle.net/10220/10885 10.1063/1.4769347 en Applied physics letters © 2012 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at the following official DOI: [http://dx.doi.org/10.1063/1.4769347]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf
spellingShingle Yang, Xuyong
Divayana, Yoga
Zhao, Dewei
Leck, Kheng Swee
Lu, Fen
Tan, Swee Tiam
Abiyasa, Agus Putu
Zhao, Yongbiao
Demir, Hilmi Volkan
Sun, Xiaowei
A bright cadmium-free, hybrid organic/quantum dot white light-emitting diode
title A bright cadmium-free, hybrid organic/quantum dot white light-emitting diode
title_full A bright cadmium-free, hybrid organic/quantum dot white light-emitting diode
title_fullStr A bright cadmium-free, hybrid organic/quantum dot white light-emitting diode
title_full_unstemmed A bright cadmium-free, hybrid organic/quantum dot white light-emitting diode
title_short A bright cadmium-free, hybrid organic/quantum dot white light-emitting diode
title_sort bright cadmium free hybrid organic quantum dot white light emitting diode
url https://hdl.handle.net/10356/99089
http://hdl.handle.net/10220/10885
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