NANOCRYSTALLINE NICKEL DOPED ZINC-OXIDE GAS SENSORS

Russell, Nigel V. and Chadwick, Alan V. and Wilson, A. (1995) NANOCRYSTALLINE NICKEL DOPED ZINC-OXIDE GAS SENSORS. In: 1st European Conference on Synchrotron Radiation in Materials Science, Jul, 03-08, 1994, Chester, England. (The full text of this publication is not available from this repository)

The full text of this publication is not available from this repository. (Contact us about this Publication)

Abstract

Samples of nanocrystalline Ni doped ZnO have been prepared and characterised by several techniques including chemical analysis, X-ray powder diffraction and X-ray absorption spectra (EXAFS). The particle sizes are typically less than 100 Angstrom on the largest diameter. The diffraction results show that lightly doped samples are single phase within the ZnO crystal structure. The EXAFS results indicate that the Ni2+ ions occupy some of the sites which would normally be occupied by Zn2+. Gas sensing experiments show a good response to low ppm concentrations of toluene vapour and a change in semiconductor type behaviour with temperature.

Item Type: Conference or workshop item (Paper)
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: I.T. Ekpo
Date Deposited: 30 May 2009 19:02
Last Modified: 17 Jul 2014 11:01
Resource URI: http://kar.kent.ac.uk/id/eprint/19006 (The current URI for this page, for reference purposes)
  • Depositors only (login required):