A rare earth-free GaZnON phosphor prepared by combustion for white light-emitting diodes

Neelu Chouhan, Chun Che Lin, Shu Fen Hu, Ru Shi Liu

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Nanophosphor GaZnON was synthesized by combustion using a unimolar mixture of metal oxides and urea as a flux/combustible agent at varying temperature and time; the resulting products crystallized in a single monoclinic phase and had broad PLE spectra (300-550 nm at λex = 350 nm) with the characteristic blue emission that can be utilised in white light-emitting diodes by adding them with red and green light-emitting phosphors and by using a UV LED (λex = 300 nm). Phosphors were examined according to respective package parameters. The blue light-emitting phosphor GaZnON was found to have excellent potential in white light-emitting diode devices by assimilating them with already viable red and green light-emitting phosphors and by stimulating them using a near-UV LED chip with wavelength λex = 300 nm. The possible electron transition mechanism responsible for the luminescence process is also discussed based on the experimental data.

Original languageEnglish
Pages (from-to)1473-1479
Number of pages7
JournalJournal of Materials Chemistry C
Volume3
Issue number7
DOIs
Publication statusPublished - 2015 Feb 21

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Phosphors
Rare earths
Light emitting diodes
Methyl Green
Electron transitions
Urea
Oxides
Luminescence
Metals
Fluxes
Wavelength
Temperature

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

Cite this

A rare earth-free GaZnON phosphor prepared by combustion for white light-emitting diodes. / Chouhan, Neelu; Lin, Chun Che; Hu, Shu Fen; Liu, Ru Shi.

In: Journal of Materials Chemistry C, Vol. 3, No. 7, 21.02.2015, p. 1473-1479.

Research output: Contribution to journalArticle

Chouhan, Neelu ; Lin, Chun Che ; Hu, Shu Fen ; Liu, Ru Shi. / A rare earth-free GaZnON phosphor prepared by combustion for white light-emitting diodes. In: Journal of Materials Chemistry C. 2015 ; Vol. 3, No. 7. pp. 1473-1479.
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