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CRYSTALLINE GRAIN SIZE EFFECTS ON THE CONDUCTIVITY OF THE DOPED TIN DIOXIDE (SnO2) WITH ZINC (Zn)

Uno, U. E. and Emetere, Moses and Aplha, M. (2014) CRYSTALLINE GRAIN SIZE EFFECTS ON THE CONDUCTIVITY OF THE DOPED TIN DIOXIDE (SnO2) WITH ZINC (Zn). Journal of Ovonic Research, 10 (3). pp. 83-88.

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Abstract

Nigeria Spray pyrolysis technique was used for the fabrication of the sample. A series of SnO2 and Zn doped SnO2 (Zn. SnO2) have been deposited on the glass slide with different doping concentration values of 1 wt.% , 2 wt.% ,3 wt.% and 4 wt.% Zn on SnO2. The average grain size of the Zn doped SnO2, compare to the average grain size of SnO2 film is clearly increasing upon increase in doping concentration. However, grain boundary theories were obeyed except for the 4 wt.% Zn on SnO2 which showed a high level of doping incompatibility. At 1 wt.% Zn on SnO2 exhibited the characteristics of a homogenous and stable p-type semiconductor. At 3 wt.% Zn on SnO2, the direction change in the orientation of two adjacent grains was shown to localize at a site equidistant to the grains.

Item Type: Article
Uncontrolled Keywords: Spray pyrolysis, SnO2 thin film, Conductivity, Doping
Subjects: Q Science > QC Physics
Divisions: Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User: Mrs Patricia Nwokealisi
Date Deposited: 11 May 2018 12:02
Last Modified: 11 May 2018 12:02
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/10784

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