High stability of liquid-typed white light-emitting diode with Zn0.8Cd0.2S white quantum dots

Chin Chuan Huang; Kuo Hsiung Chu; Chin Wei Sher; Chun Liang Lin; Yan Kuin Su; Chia Wei Sun; Hao-Chung Kuo

doi:10.3390/coatings11040415

High stability of liquid-typed white light-emitting diode with Zn_0.8Cd_0.2S white quantum dots

Chin Chuan Huang, Kuo Hsiung Chu, Chin Wei Sher^*, Chun Liang Lin, Yan Kuin Su, Chia Wei Sun, Hao-Chung Kuo

^*Corresponding author for this work

Department of Photonics

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

3 Scopus citations

Abstract

In this study, we demonstrate a new design of white light-emitting diode (WLED) with high stability and luminous efficiency as well as positive aging. Colloidal ternary Zn_0.8Cd_0.2S (named Zn_0.8 ) white quantum dots (WQDs) were prepared by chemical route and dispersed in xylene, integrating them into an ultraviolet light-emitting diode (UV-LED) to form WQD-white light emitting diode (WQD-WLED). High efficiency, high color quality and excellent reliability of WQD-WLED with neutral white correlated color temperature (CCT) can be obtained. The experimental results indicate that the stability of relative luminous efficiency and color rendering index (CRI) of the WQD-WLED can reach up to 160 and 82%, respectively. Moreover, the WQD-WLED can operate more than 1000 h under 100 mA, and the quantity of WQDs in the glass package can be reduced.

Original language	English
Article number	415
Pages (from-to)	1-9
Number of pages	9
Journal	Coatings
Volume	11
Issue number	4
DOIs	https://doi.org/10.3390/coatings11040415
State	Published - Apr 2021

Keywords

CdSe/ZnS
Luminous efficiency
Quantum dots
Ultraviolet

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10.3390/coatings11040415

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@article{1287cc83699246b3a5157b9568c2e8fe,

title = "High stability of liquid-typed white light-emitting diode with Zn0.8Cd0.2S white quantum dots",

abstract = "In this study, we demonstrate a new design of white light-emitting diode (WLED) with high stability and luminous efficiency as well as positive aging. Colloidal ternary Zn0.8Cd0.2S (named Zn0.8 ) white quantum dots (WQDs) were prepared by chemical route and dispersed in xylene, integrating them into an ultraviolet light-emitting diode (UV-LED) to form WQD-white light emitting diode (WQD-WLED). High efficiency, high color quality and excellent reliability of WQD-WLED with neutral white correlated color temperature (CCT) can be obtained. The experimental results indicate that the stability of relative luminous efficiency and color rendering index (CRI) of the WQD-WLED can reach up to 160 and 82%, respectively. Moreover, the WQD-WLED can operate more than 1000 h under 100 mA, and the quantity of WQDs in the glass package can be reduced.",

keywords = "CdSe/ZnS, Luminous efficiency, Quantum dots, Ultraviolet",

author = "Huang, {Chin Chuan} and Chu, {Kuo Hsiung} and Sher, {Chin Wei} and Lin, {Chun Liang} and Su, {Yan Kuin} and Sun, {Chia Wei} and Hao-Chung Kuo",

note = "Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2021",

month = apr,

doi = "10.3390/coatings11040415",

language = "English",

volume = "11",

pages = "1--9",

journal = "Coatings",

issn = "2079-6412",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

number = "4",

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TY - JOUR

T1 - High stability of liquid-typed white light-emitting diode with Zn0.8Cd0.2S white quantum dots

AU - Huang, Chin Chuan

AU - Chu, Kuo Hsiung

AU - Sher, Chin Wei

AU - Lin, Chun Liang

AU - Su, Yan Kuin

AU - Sun, Chia Wei

AU - Kuo, Hao-Chung

PY - 2021/4

Y1 - 2021/4

N2 - In this study, we demonstrate a new design of white light-emitting diode (WLED) with high stability and luminous efficiency as well as positive aging. Colloidal ternary Zn0.8Cd0.2S (named Zn0.8 ) white quantum dots (WQDs) were prepared by chemical route and dispersed in xylene, integrating them into an ultraviolet light-emitting diode (UV-LED) to form WQD-white light emitting diode (WQD-WLED). High efficiency, high color quality and excellent reliability of WQD-WLED with neutral white correlated color temperature (CCT) can be obtained. The experimental results indicate that the stability of relative luminous efficiency and color rendering index (CRI) of the WQD-WLED can reach up to 160 and 82%, respectively. Moreover, the WQD-WLED can operate more than 1000 h under 100 mA, and the quantity of WQDs in the glass package can be reduced.

AB - In this study, we demonstrate a new design of white light-emitting diode (WLED) with high stability and luminous efficiency as well as positive aging. Colloidal ternary Zn0.8Cd0.2S (named Zn0.8 ) white quantum dots (WQDs) were prepared by chemical route and dispersed in xylene, integrating them into an ultraviolet light-emitting diode (UV-LED) to form WQD-white light emitting diode (WQD-WLED). High efficiency, high color quality and excellent reliability of WQD-WLED with neutral white correlated color temperature (CCT) can be obtained. The experimental results indicate that the stability of relative luminous efficiency and color rendering index (CRI) of the WQD-WLED can reach up to 160 and 82%, respectively. Moreover, the WQD-WLED can operate more than 1000 h under 100 mA, and the quantity of WQDs in the glass package can be reduced.

KW - CdSe/ZnS

KW - Luminous efficiency

KW - Quantum dots

KW - Ultraviolet

UR - http://www.scopus.com/inward/record.url?scp=85104180511&partnerID=8YFLogxK

U2 - 10.3390/coatings11040415

DO - 10.3390/coatings11040415

M3 - Article

AN - SCOPUS:85104180511

SN - 2079-6412

VL - 11

SP - 1

EP - 9

JO - Coatings

JF - Coatings

IS - 4

M1 - 415

ER -

High stability of liquid-typed white light-emitting diode with Zn_0.8Cd_0.2S white quantum dots

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Keywords

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