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Effect of varying oxygen partial pressure on the properties of reactively evaporated zinc aluminate thin films

  • Saira Riaz and Shahzad Naseem
Published/Copyright: June 11, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 100 Issue 2

Abstract

Thin films of zinc aluminate are prepared by reactive evaporation. The composition of these films is varied by changing the oxygen partial pressure and by post-deposition annealing. It is observed that there is wide variation in the band gap values (2.34 – 4.54 eV) depending on the oxygen partial pressure. Further, there is a strong dependence of band gap values on the post-deposition annealing conditions. One of the films exhibits spinel (AB2O4) structure, whereas the rest are amorphous. A resistivity value of as low as 3.6 × 10– 3 ohm-cm has been measured. The compositional studies, using mass spectrometry, reported in this paper point towards novel transparent conducting oxides.

Keywords: Thin films; Zinc aluminate; Reactive evaporation
* Correspondence address, Prof. Dr. Shahzad Naseem Centre of Excellence in Solid State Physics University of the Punjab, QAC, Lahore-54590, Pakistan Tel.: +92 42 584 7170 Fax: +92 42 923 1139 E-mail:

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Received: 2008-4-4
Accepted: 2008-10-25
Published Online: 2013-06-11
Published in Print: 2009-02-01

© 2009, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110005
Keywords for this article
Thin films; Zinc aluminate; Reactive evaporation

Articles in the same Issue

  1. Contents
  2. Contents
  3. Feature
  4. Materials constitution and computational thermodynamics in the context of 100 years of IJMR – Zeitschrift für Metallkunde
  5. Upgrading CALPHAD to microstructure simulation: the phase-field method
  6. Prediction, determination and validation of phase diagrams via the global study of energy landscapes
  7. Alloy development using modern tools
  8. Phase equilibria and thermal analysis in the Fe–Mn–Ni system
  9. Integrated approach to thermodynamics, phase relations, liquid densities and solidification microstructures in the Al–Bi–Cu system
  10. Formation of clathrates Ba–M–Ge(M = Mn, Fe, Co)
  11. New paradigm of a metastable phase diagram presenting structural transformations induced by annealing of Si–C–N amorphous ceramics derived from polymer precursors
  12. Basic
  13. Thermodynamic assessment of the Ce–Si, Y–Si, Mg–Ce–Si and Mg–Y–Si systems
  14. Thermodynamic re-assessment of the Ti–Al–Nb system
  15. Effect of varying oxygen partial pressure on the properties of reactively evaporated zinc aluminate thin films
  16. Applied
  17. Matrix induced synthesis of Y3Al5O12: Ce phosphor through the Pechini method
  18. Microstructure and room temperature compressive properties of holmium doped DS NiAl-Cr(Mo)-Hf eutectic alloy
  19. Evaporation mechanism of aluminum during electron beam cold hearth melting of Ti64 alloy
  20. 560°C isothermal section of the Zn–Fe–Ni–Si quaternary system at the zinc-rich corner
  21. DGM News
  22. Personal
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