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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.122  No.1426 (June) (2014)  >  pp.421-425

Journal of the Ceramic Society of Japan
<<Previous article Vol.122  No.1426 (June) (2014)   pp.421 - 425 Next article>>

Zn and Sb interaction and oxygen defect chemistry in dense SnO2 ceramics co-doped with ZnO and Sb2O5

Minako HASHIGUCHI1), Isao SAKAGUCHI1), Shunichi HISHITA1), Naoki OHASHI1) 2)
1) National Institute for Materials Science (NIMS) 2) Materials Research Center for Element Strategy, Tokyo Institute of Technology

This paper reports study of zinc (Zn)-antimony (Sb) interactions as well as oxygen defect chemistry in dense SnO2 ceramics using secondary ion mass spectrometry (SIMS). Dense SnO2 ceramics with ZnO and Sb2O5 additives with different concentration were synthesized by conventional techniques. Characterization using SIMS revealed the morphology of the SnO2 ceramics, the concentration of Zn and Sb in SnO2 grains, as well as segregation and secondary phase formation. The distributions of Zn and Sb were dependent on their concentrations. Oxygen diffusivity significantly decreased by the incorporation of Sb, whereas the diffusivity slightly increased with increasing Zn concentration in the SnO2 grain. Our results show interaction of Zn, Sb, and oxygen vacancies, suggesting that incorporation of Zn into SnO2 grains promotes Sb incorporation into the grains.


Keyword:
Tin dioxide, Point defect, Interaction, Secondary ion mass spectrometry

Received: December 09, 2013
Accepted: February 06, 2014 , Published online: June 01, 2014
Copyright © 2014 The Ceramic Society of Japan

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