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

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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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ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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