Coordination change of Te atoms in binary tellurite glasses

Yusuke Himei; Akiyoshi Osaka; Tokuro Nanba; Yoshinari Miura

doi:10.1016/0022-3093(94)90526-6

Coordination change of Te atoms in binary tellurite glasses

Yusuke Himei, Akiyoshi Osaka, Tokuro Nanba, Yoshinari Miura

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138 Citations (Scopus)

Abstract

Coordination changes of Te(+ IV) atoms were derived from Raman and X-ray photoelectron spectra of the binary tellurite glasses containing Li, Na, Ba and Zn. A structure model consistent with the experimental results was proposed. In this model, TeO₄ units were converted mainly to O_{2 2}Te=O and O_{1 2}Te(=O) O^- in the range of lower atomic ratio O/Te, and the rate of increase of TeO₃/TeO₄ decreased in the range of higher O/Te because of the equilibrium TeO_{4 2} ↔ O_{2 2}TeO. The increase in the fraction of non-bridging oxygen atoms and three-coordinated Te(+ IV) atoms was confirmed by X-ray photoelectron spectra. The fraction of non-bridging oxygen estimated from X-ray photoelectron spectra agreed well with that from the Raman spectra and the model.

Original language	English
Pages (from-to)	164-169
Number of pages	6
Journal	Journal of Non-Crystalline Solids
Volume	177
Issue number	C
DOIs	https://doi.org/10.1016/0022-3093(94)90526-6
Publication status	Published - Nov 2 1994

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

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10.1016/0022-3093(94)90526-6

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title = "Coordination change of Te atoms in binary tellurite glasses",

abstract = "Coordination changes of Te(+ IV) atoms were derived from Raman and X-ray photoelectron spectra of the binary tellurite glasses containing Li, Na, Ba and Zn. A structure model consistent with the experimental results was proposed. In this model, TeO4 units were converted mainly to O 2 2Te=O and O 1 2Te(=O) O- in the range of lower atomic ratio O/Te, and the rate of increase of TeO3/TeO4 decreased in the range of higher O/Te because of the equilibrium TeO 4 2 ↔ O 2 2TeO. The increase in the fraction of non-bridging oxygen atoms and three-coordinated Te(+ IV) atoms was confirmed by X-ray photoelectron spectra. The fraction of non-bridging oxygen estimated from X-ray photoelectron spectra agreed well with that from the Raman spectra and the model.",

author = "Yusuke Himei and Akiyoshi Osaka and Tokuro Nanba and Yoshinari Miura",

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T1 - Coordination change of Te atoms in binary tellurite glasses

AU - Himei, Yusuke

AU - Osaka, Akiyoshi

AU - Nanba, Tokuro

AU - Miura, Yoshinari

PY - 1994/11/2

Y1 - 1994/11/2

N2 - Coordination changes of Te(+ IV) atoms were derived from Raman and X-ray photoelectron spectra of the binary tellurite glasses containing Li, Na, Ba and Zn. A structure model consistent with the experimental results was proposed. In this model, TeO4 units were converted mainly to O 2 2Te=O and O 1 2Te(=O) O- in the range of lower atomic ratio O/Te, and the rate of increase of TeO3/TeO4 decreased in the range of higher O/Te because of the equilibrium TeO 4 2 ↔ O 2 2TeO. The increase in the fraction of non-bridging oxygen atoms and three-coordinated Te(+ IV) atoms was confirmed by X-ray photoelectron spectra. The fraction of non-bridging oxygen estimated from X-ray photoelectron spectra agreed well with that from the Raman spectra and the model.

AB - Coordination changes of Te(+ IV) atoms were derived from Raman and X-ray photoelectron spectra of the binary tellurite glasses containing Li, Na, Ba and Zn. A structure model consistent with the experimental results was proposed. In this model, TeO4 units were converted mainly to O 2 2Te=O and O 1 2Te(=O) O- in the range of lower atomic ratio O/Te, and the rate of increase of TeO3/TeO4 decreased in the range of higher O/Te because of the equilibrium TeO 4 2 ↔ O 2 2TeO. The increase in the fraction of non-bridging oxygen atoms and three-coordinated Te(+ IV) atoms was confirmed by X-ray photoelectron spectra. The fraction of non-bridging oxygen estimated from X-ray photoelectron spectra agreed well with that from the Raman spectra and the model.

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JF - Journal of Non-Crystalline Solids

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Coordination change of Te atoms in binary tellurite glasses

Abstract

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