Co-doping effect of Zn and Sb in SnO2: Valence stabilization of Sb and expanded solubility limit

Title
Co-doping effect of Zn and Sb in SnO2: Valence stabilization of Sb and expanded solubility limit
Author(s)
이희영김동균[김동균]이준형[이준형]허영우[허영우]김정주[김정주]
Keywords
ELECTRICAL-PROPERTIES; IN2O3 CERAMICS; INDIUM OXIDE; ANTIMONY
Issue Date
201109
Publisher
ELSEVIER SCI LTD
Citation
CERAMICS INTERNATIONAL, v.37, no.7, pp.2723 - 2726
Abstract
In this study, the co-doping effect of ZnO and Sb2O5 on the solubility limit in SnO2 was investigated. When ZnO was added to SnO2, its solubility limit was around 3 at%, while that of Sb2O5 could not be evaluated due to the severe evaporation of Sb2O5 during sintering. For the co-doping of ZnO and Sb2O5, the ZnSb2O6 phase was used for the source of Zn and Sb dopants to prevent the evaporation of Sb2O5. When ZnO and Sb2O5 were co-doped by ZnSb2O6, the solubility limit expanded to 60 at%. XPS analysis of the Sb revealed that Sb5+ is stable when Zn is co-doped. The extended solubility limit is explained by electrostatic and strain energy minimization in the lattice. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/24613http://dx.doi.org/10.1016/j.ceramint.2011.04.026
ISSN
0272-8842
Appears in Collections:
공과대학 > 신소재공학부 > Articles
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