119Sn Mössbauer Study of as-Deposited Layers Prepared by Co-evaporation of TeO2 and Sn

被引:0
|
作者
E. Kuzmann
K. Nomura
I. Podolesheva
P. Gushterova
Z. Homonnay
A. Vértes
机构
[1] Eötvös University,Department of Nuclear Chemistry
[2] The University of Tokyo,Graduate School of Engineering
[3] Bulgarian Academy of Sciences,Central Laboratory of Photoprocesses
来源
Hyperfine Interactions | 2002年 / 139-140卷
关键词
Sn Mössbauer spectroscopy; CEMS; Te and Sn oxide films;
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学科分类号
摘要
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.
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页码:251 / 257
页数:6
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