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119Sn Mössbauer Study of as-Deposited Layers Prepared by Co-evaporation of TeO2 and Sn |
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| Authors: | Kuzmann E Nomura K Podolesheva I Gushterova P Homonnay Z Vértes A |
| Institution: | (1) Department of Nuclear Chemistry, Eötvös University, Budapest, Hungary;(2) Graduate School of Engineering, The University of Tokyo, Tokyo, 113-8656, Japan;(3) Central Laboratory of Photoprocesses, Bulgarian Academy of Sciences, Sofia, Bulgaria |
| Abstract: | The deposited layers on glass surface with thickness between 230 and 500 nm were prepared by the chemical reactions of TeO2 and Sn during vacuum co-deposition, and were characterized as a function of the Sn/Te ratio between 0.5 and 2.8 by 119Sn conversion electron Mössbauer spectroscopy. The as-deposited samples showed amorphous character with very finely dispersed microstructure. The 119Sn Mössbauer spectra of as-deposited samples revealed the dominance of Sn(II) and Sn(IV) states although SnTe was also found when the Sn/Te ratio was high. A monotonous increase of the Sn(II)/Sn(IV) ratio was observed with increasing Sn/Te ratio. |
| Keywords: | 119Sn Mö ssbauer spectroscopy CEMS Te and Sn oxide films |
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