Chiang Mai Journal of Science

Theory of Doping in Indirect Determination of Concentration and Mobility of Native Point Defects in Metal Oxides

Paper Type	Contributed Paper
Title	Theory of Doping in Indirect Determination of Concentration and Mobility of Native Point Defects in Metal Oxides
Author	Zbigniew Grzesik
Email	grzesik@agh.edu.pl
Abstract:  In the present paper the application of doping effect to the calculations of concentration and mobility of point defects in transition metal oxides has been discussed. The proposed method consists in determination of the deviation from stoichiometry and thereby the concentration of prevailing point defects in a given oxide from the influence of aliovalent additions on the formation kinetics of this oxide, i.e., from doping effect. The possibilities offered by this method have been illustrated using diluted binary Ni-Cr and Ni-Li alloys, from the oxidation rates of which the defect concentration and defect mobility in Ni1-yO have been calculated. It has been shown that the results of such calculations are in satisfactory agreement with experimentally determined data, using direct gravimetric method.
Start & End Page	365 - 374
Received Date	2015-09-15
Revised Date
Accepted Date	2015-11-12
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Keyword	doping effect, nonstoichiometric nickel oxide, oxidation kinetics, defect concentration, defect mobility
Volume	Vol.43 No.2 (SPECIAL ISSUE 1)
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