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

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Andrei S. Susha
  • Bingkun Chen
  • Claas Reckmeier
  • Ondrej Tomanec
  • Radek Zboril
  • Haizheng Zhong

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)7197-7202
Journal / PublicationNanoscale
Volume8
Issue number13
Online published2 Mar 2016
Publication statusPublished - 7 Apr 2016

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.

Citation Format(s)

Poly(vinylpyrrolidone) supported copper nanoclusters : glutathione enhanced blue photoluminescence for application in phosphor converted light emitting devices. / Wang, Zhenguang; Susha, Andrei S.; Chen, Bingkun; Reckmeier, Claas; Tomanec, Ondrej; Zboril, Radek; Zhong, Haizheng; Rogach, Andrey L.

In: Nanoscale, Vol. 8, No. 13, 07.04.2016, p. 7197-7202.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review