Microwave-assisted synthesis of CdS/ZnS:Cu quantum dots for white light-emitting diodes with high color rendition

Tong Tong Xuan; Jia Qing Liu; Rong Jun Xie; Hui Li Li; Zhuo Sun

doi:10.1021/cm503770w

Microwave-assisted synthesis of CdS/ZnS:Cu quantum dots for white light-emitting diodes with high color rendition

Tong Tong Xuan
, Jia Qing Liu
, Rong Jun Xie
, Hui Li Li^*
, Zhuo Sun

^*Corresponding author for this work

School of Physics and Electronic Science

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

127 Scopus citations

Abstract

High quality CdS/ZnS:Cu quantum dots (QDs) were first synthesized via a green microwave irradiation route. As-prepared core/shell doped QDs presented a strong absorption in the blue light region and highly efficient red to deep red emission with a maximum quantum yield of 40%. The composite formed by dispersing CdS/ZnS:Cu QDs into silicone resin showed an excellent photostability under blue illumination. Finally, high color rendition white light was generated from the CdS/ZnS:Cu QDs-assisted phosphor-converted white light-emitting diode (WLED) in which there was no reabsorption between quantum dots and phosphors. Under operation of 40 mA forward bias current, the fabricated WLED emitted bright natural white light with a high color rendering index of 90, a luminous efficiency of 46.5 lm/W, and the correlated color temperature of 6591 K. Simultaneously, the good color stability was accompanied by the CIE color coordinates of (0.3155, 0.3041) under different forward bias currents.

Original language	English
Pages (from-to)	1187-1193
Number of pages	7
Journal	Chemistry of Materials
Volume	27
Issue number	4
DOIs	https://doi.org/10.1021/cm503770w
State	Published - 24 Feb 2015

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@article{de9b03df5bb9496eaf2385f66fa11020,

title = "Microwave-assisted synthesis of CdS/ZnS:Cu quantum dots for white light-emitting diodes with high color rendition",

abstract = "High quality CdS/ZnS:Cu quantum dots (QDs) were first synthesized via a green microwave irradiation route. As-prepared core/shell doped QDs presented a strong absorption in the blue light region and highly efficient red to deep red emission with a maximum quantum yield of 40\%. The composite formed by dispersing CdS/ZnS:Cu QDs into silicone resin showed an excellent photostability under blue illumination. Finally, high color rendition white light was generated from the CdS/ZnS:Cu QDs-assisted phosphor-converted white light-emitting diode (WLED) in which there was no reabsorption between quantum dots and phosphors. Under operation of 40 mA forward bias current, the fabricated WLED emitted bright natural white light with a high color rendering index of 90, a luminous efficiency of 46.5 lm/W, and the correlated color temperature of 6591 K. Simultaneously, the good color stability was accompanied by the CIE color coordinates of (0.3155, 0.3041) under different forward bias currents.",

author = "Xuan, \{Tong Tong\} and Liu, \{Jia Qing\} and Xie, \{Rong Jun\} and Li, \{Hui Li\} and Zhuo Sun",

note = "Publisher Copyright: {\textcopyright} 2015 American Chemical Society.",

year = "2015",

month = feb,

day = "24",

doi = "10.1021/cm503770w",

language = "英语",

volume = "27",

pages = "1187--1193",

journal = "Chemistry of Materials",

issn = "0897-4756",

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TY - JOUR

T1 - Microwave-assisted synthesis of CdS/ZnS:Cu quantum dots for white light-emitting diodes with high color rendition

AU - Xuan, Tong Tong

AU - Liu, Jia Qing

AU - Xie, Rong Jun

AU - Li, Hui Li

AU - Sun, Zhuo

PY - 2015/2/24

Y1 - 2015/2/24

N2 - High quality CdS/ZnS:Cu quantum dots (QDs) were first synthesized via a green microwave irradiation route. As-prepared core/shell doped QDs presented a strong absorption in the blue light region and highly efficient red to deep red emission with a maximum quantum yield of 40%. The composite formed by dispersing CdS/ZnS:Cu QDs into silicone resin showed an excellent photostability under blue illumination. Finally, high color rendition white light was generated from the CdS/ZnS:Cu QDs-assisted phosphor-converted white light-emitting diode (WLED) in which there was no reabsorption between quantum dots and phosphors. Under operation of 40 mA forward bias current, the fabricated WLED emitted bright natural white light with a high color rendering index of 90, a luminous efficiency of 46.5 lm/W, and the correlated color temperature of 6591 K. Simultaneously, the good color stability was accompanied by the CIE color coordinates of (0.3155, 0.3041) under different forward bias currents.

AB - High quality CdS/ZnS:Cu quantum dots (QDs) were first synthesized via a green microwave irradiation route. As-prepared core/shell doped QDs presented a strong absorption in the blue light region and highly efficient red to deep red emission with a maximum quantum yield of 40%. The composite formed by dispersing CdS/ZnS:Cu QDs into silicone resin showed an excellent photostability under blue illumination. Finally, high color rendition white light was generated from the CdS/ZnS:Cu QDs-assisted phosphor-converted white light-emitting diode (WLED) in which there was no reabsorption between quantum dots and phosphors. Under operation of 40 mA forward bias current, the fabricated WLED emitted bright natural white light with a high color rendering index of 90, a luminous efficiency of 46.5 lm/W, and the correlated color temperature of 6591 K. Simultaneously, the good color stability was accompanied by the CIE color coordinates of (0.3155, 0.3041) under different forward bias currents.

UR - https://www.scopus.com/pages/publications/84923341502

U2 - 10.1021/cm503770w

DO - 10.1021/cm503770w

M3 - 文章

AN - SCOPUS:84923341502

SN - 0897-4756

VL - 27

SP - 1187

EP - 1193

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 4

ER -

Microwave-assisted synthesis of CdS/ZnS:Cu quantum dots for white light-emitting diodes with high color rendition

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