The role of cobalt doping on magnetic and optical properties of indium oxide nanostructured thin film prepared by sol-gel method

H. Baqiah, Noor Baa`Yah Ibrahim, S. A. Halim, Moayad Husein Flaifel, M. H. Abdi

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The effect of Co doping concentration, (x = 0.025-0.2), in In2-xCoxO3 thin film was investigated by X-rays diffraction (XRD), transmission electron microscopy, X-ray photoelectron spectroscopy (XPS), Ultraviolet visible spectrophotometer (UV-vis) and vibrating sample magnetometer (VSM). All films were prepared by sol-gel technique followed by spin coating process. The XRD and XPS measurements indicate that Co+2 has been successfully substituted in In+3 site. The TEM measurement shows nanostructure morphology of the films. The doping of Co in indium oxide resulted in a decrease in the lattice parameters and grain size while the band gap increased with increasing Co concentration. Further, by comparing VSM and XPS results, the magnetic behaviour of the films were found to be sensitive to Co concentrations, oxygen vacancies and ratio of oxygen defects to Co concentrations. The magnetic behaviour of the prepared films was explained using bound magnetic polaron (BMP) model.

Original languageEnglish
Pages (from-to)147-154
Number of pages8
JournalMaterials Research Bulletin
Volume63
DOIs
Publication statusPublished - 2015

Fingerprint

Cobalt
indium oxides
Indium
Sol-gel process
Magnetic properties
cobalt
Optical properties
Doping (additives)
gels
magnetic properties
optical properties
Thin films
Oxides
X ray photoelectron spectroscopy
Magnetometers
thin films
photoelectron spectroscopy
x rays
magnetometers
Transmission electron microscopy

Keywords

  • Defects
  • Magnetic properties
  • Nanostructures
  • Sol-gel chemistry
  • Thin films

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

The role of cobalt doping on magnetic and optical properties of indium oxide nanostructured thin film prepared by sol-gel method. / Baqiah, H.; Ibrahim, Noor Baa`Yah; Halim, S. A.; Flaifel, Moayad Husein; Abdi, M. H.

In: Materials Research Bulletin, Vol. 63, 2015, p. 147-154.

Research output: Contribution to journalArticle

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