Photoluminescence and photodissociation properties of pure and In 2O3 doped ZnO nanophases

N. Boulares, K. Guergouri, R. Zouaghi, Nouar Tabet, A. Lusson, F. Sibieude, C. Monty

Research output: Contribution to journalArticle

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Abstract

Pure and doped zinc oxide powders of various grain sizes have been synthesized by sublimation-condensation technique using a solar furnace. The initial powders contained from 0 to 5% mol of In2O3. X-ray diffraction technique (XRD) has been used to measure the lattice parameters and the grain size. The Indium concentration in the nanopowders was determined by XPS. XRD showed the formation of the spinel phase Zn5In 2O8 in the micropowders as the concentration of indium exceeded 2.5% mol. In addition, the grain size of nanopowders decreases as the In concentration increases for all considered compositions. The photoluminescence spectra showed a drastic reduction of the exciton bound to a donor and an important broadening of the corresponding line as a result of the In doping. The photocatalytic properties of ZnO and TiO2 powders were investigated using the Monoluniron as septicide. The results showed that the photodegradation of the molecule was significantly faster when using pure ZnO nanopowder. However, the photocatalytic activity of the ZnO nanopowders was drastically reduced by the In doping.

Original languageEnglish
Pages (from-to)2319-2328
Number of pages10
JournalPhysica Status Solidi (A) Applied Research
Volume201
Issue number10
DOIs
Publication statusPublished - 1 Aug 2004
Externally publishedYes

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Photodissociation
photodissociation
Powders
Photoluminescence
Indium
grain size
photoluminescence
indium
solar furnaces
Doping (additives)
Solar furnaces
Zinc Oxide
X ray diffraction
Sublimation
Photodegradation
Zinc oxide
sublimation
diffraction
Excitons
zinc oxides

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Photoluminescence and photodissociation properties of pure and In 2O3 doped ZnO nanophases. / Boulares, N.; Guergouri, K.; Zouaghi, R.; Tabet, Nouar; Lusson, A.; Sibieude, F.; Monty, C.

In: Physica Status Solidi (A) Applied Research, Vol. 201, No. 10, 01.08.2004, p. 2319-2328.

Research output: Contribution to journalArticle

Boulares, N. ; Guergouri, K. ; Zouaghi, R. ; Tabet, Nouar ; Lusson, A. ; Sibieude, F. ; Monty, C. / Photoluminescence and photodissociation properties of pure and In 2O3 doped ZnO nanophases. In: Physica Status Solidi (A) Applied Research. 2004 ; Vol. 201, No. 10. pp. 2319-2328.
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