Badrinarayanan, S. ; Mandale, A. B. ; Sinha, A. P. B. (1984) Photoelectron spectroscopy study of surface oxidation of SnTe PbTe and PbSnTe Materials Chemistry and Physics, 11 (1). pp. 1-14. ISSN 0254-0584
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0254-0584(84)90084-1
Abstract
X-ray photoelectron spectroscopic measurements of the oxidation of SnTe, PbTe and Pb0.5Sn0.5Te surfaces in oxygen and air at different temperatures are reported. SnTe heated in oxygen atmosphere for a short duration showed rapid formation of SnO2. However, a sample heated in air for 2h. in the temperature interval 220-650° C showed the formation and gradual increase of TeO2 on the surface. On oxidation, the PbTe surface had a composition of PbO2, TeO2 and Te. The oxidation of Pb0.5Sn0.5Te is a superimposed oxidation behaviour of the two binary compounds PbTe and SnTe. In the Pb0.5Sn0.5Te system Sn is oxidised most quickly and tellurium behaves like the PbTe system. The experimental results are explained on the basis of heats of formation of the oxides of Sn, Pb and Te.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 49013 |
| Deposited On: | 18 Jul 2011 09:56 |
| Last Modified: | 18 Jul 2011 09:56 |
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