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Title: A bright cadmium-free, hybrid organic/quantum dot white light-emitting diode
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
Issue Date: 2012
Source: 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-.
Series/Report no.: Applied physics letters
Abstract: 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.
DOI: 10.1063/1.4769347
Schools: School of Physical and Mathematical Sciences 
School of Electrical and Electronic Engineering 
Rights: © 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: []. 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.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles
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