Poly(vinylpyrrolidone) supported copper nanoclusters: Glutathione enhanced blue photoluminescence for application in phosphor converted light emitting devices

Zhenguang Wang; Andrei S. Susha; Bingkun Chen; Claas Reckmeier; Ondrej Tomanec; Radek Zboril; Haizheng Zhong; Andrey L. Rogach

doi:10.1039/c6nr00806b

Poly(vinylpyrrolidone) supported copper nanoclusters: Glutathione enhanced blue photoluminescence for application in phosphor converted light emitting devices

Zhenguang Wang, Andrei S. Susha, Bingkun Chen, Claas Reckmeier, Ondrej Tomanec, Radek Zboril, Haizheng Zhong, Andrey L. Rogach^*

^*Corresponding author for this work

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

101 Citations (Scopus)

Abstract

Poly(vinylpyrrolidone) supported Cu nanoclusters were synthesized by reduction of Cu(II) ions with ascorbic acid in water, and initially showed blue photoluminescence with a quantum yield of 8%. An enhancement of the emission quantum yield has been achieved by treatment of Cu clusters with different electron-rich ligands, with the most pronounced effect (photoluminescence quantum yield of 27%) achieved with glutathione. The bright blue emission of glutathione treated Cu NCs is fully preserved in the solid state powder, which has been combined with commercial green and red phosphors to fabricate down-conversion white light emitting diodes with a high colour rendering index of 92.

Original language	English
Pages (from-to)	7197-7202
Number of pages	6
Journal	Nanoscale
Volume	8
Issue number	13
DOIs	https://doi.org/10.1039/c6nr00806b
Publication status	Published - 7 Apr 2016

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title = "Poly(vinylpyrrolidone) supported copper nanoclusters: Glutathione enhanced blue photoluminescence for application in phosphor converted light emitting devices",

abstract = "Poly(vinylpyrrolidone) supported Cu nanoclusters were synthesized by reduction of Cu(II) ions with ascorbic acid in water, and initially showed blue photoluminescence with a quantum yield of 8%. An enhancement of the emission quantum yield has been achieved by treatment of Cu clusters with different electron-rich ligands, with the most pronounced effect (photoluminescence quantum yield of 27%) achieved with glutathione. The bright blue emission of glutathione treated Cu NCs is fully preserved in the solid state powder, which has been combined with commercial green and red phosphors to fabricate down-conversion white light emitting diodes with a high colour rendering index of 92.",

author = "Zhenguang Wang and Susha, {Andrei S.} and Bingkun Chen and Claas Reckmeier and Ondrej Tomanec and Radek Zboril and Haizheng Zhong and Rogach, {Andrey L.}",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2016.",

year = "2016",

month = apr,

day = "7",

doi = "10.1039/c6nr00806b",

language = "English",

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TY - JOUR

T1 - Poly(vinylpyrrolidone) supported copper nanoclusters

T2 - Glutathione enhanced blue photoluminescence for application in phosphor converted light emitting devices

AU - Wang, Zhenguang

AU - Susha, Andrei S.

AU - Chen, Bingkun

AU - Reckmeier, Claas

AU - Tomanec, Ondrej

AU - Zboril, Radek

AU - Zhong, Haizheng

AU - Rogach, Andrey L.

PY - 2016/4/7

Y1 - 2016/4/7

N2 - Poly(vinylpyrrolidone) supported Cu nanoclusters were synthesized by reduction of Cu(II) ions with ascorbic acid in water, and initially showed blue photoluminescence with a quantum yield of 8%. An enhancement of the emission quantum yield has been achieved by treatment of Cu clusters with different electron-rich ligands, with the most pronounced effect (photoluminescence quantum yield of 27%) achieved with glutathione. The bright blue emission of glutathione treated Cu NCs is fully preserved in the solid state powder, which has been combined with commercial green and red phosphors to fabricate down-conversion white light emitting diodes with a high colour rendering index of 92.

AB - Poly(vinylpyrrolidone) supported Cu nanoclusters were synthesized by reduction of Cu(II) ions with ascorbic acid in water, and initially showed blue photoluminescence with a quantum yield of 8%. An enhancement of the emission quantum yield has been achieved by treatment of Cu clusters with different electron-rich ligands, with the most pronounced effect (photoluminescence quantum yield of 27%) achieved with glutathione. The bright blue emission of glutathione treated Cu NCs is fully preserved in the solid state powder, which has been combined with commercial green and red phosphors to fabricate down-conversion white light emitting diodes with a high colour rendering index of 92.

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U2 - 10.1039/c6nr00806b

DO - 10.1039/c6nr00806b

M3 - Article

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VL - 8

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JO - Nanoscale

JF - Nanoscale

IS - 13

ER -

Poly(vinylpyrrolidone) supported copper nanoclusters: Glutathione enhanced blue photoluminescence for application in phosphor converted light emitting devices

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