Spectroscopic, electrical and EPR studies of binary semiconducting oxide glasses containing 50 mol% V2O5

E. E. Khawaja; M. Sakhawat Hussain; M. A. Khan; J. S. Hwang

doi:10.1007/BF00551494

Spectroscopic, electrical and EPR studies of binary semiconducting oxide glasses containing 50 mol% V₂O₅

E. E. Khawaja^*, M. Sakhawat Hussain, M. A. Khan, J. S. Hwang

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

Recent measurements on the V₂O₅-GeO₂ glass system consisting of an equimolar mixture of V₂O₅ and GeO₂ revealed that increase in electrical conductivity of these glasses upon annealing could be attributed to the increase in V⁴⁺ and V³⁺ content which accompanied the microstructure formation. In the present work we report a similar study on V₂O₅-TeO₂ and V₂O₅-P₂O₅ glass systems. It was found that in tellurite glass V³⁺ content increased upon annealing and V⁴⁺ content remained unchanged. In phosphate glass some increase in V⁴⁺ and no significant change in V³⁺ contents were observed. V³⁺ and V⁴⁺ contents in glasses could be best estimated from optical and electron paramagnetic resonance spectra, respectively.

Original language	English
Pages (from-to)	2812-2818
Number of pages	7
Journal	Journal of Materials Science
Volume	21
Issue number	8
DOIs	https://doi.org/10.1007/BF00551494
State	Published - Aug 1986

ASJC Scopus subject areas

Ceramics and Composites
Materials Science (miscellaneous)
General Materials Science
Mechanics of Materials
Mechanical Engineering
Polymers and Plastics

Access to Document

10.1007/BF00551494

Cite this

@article{989a0133a2a947ebba6943dc960863e1,

title = "Spectroscopic, electrical and EPR studies of binary semiconducting oxide glasses containing 50 mol\% V2O5",

abstract = "Recent measurements on the V2O5-GeO2 glass system consisting of an equimolar mixture of V2O5 and GeO2 revealed that increase in electrical conductivity of these glasses upon annealing could be attributed to the increase in V4+ and V3+ content which accompanied the microstructure formation. In the present work we report a similar study on V2O5-TeO2 and V2O5-P2O5 glass systems. It was found that in tellurite glass V3+ content increased upon annealing and V4+ content remained unchanged. In phosphate glass some increase in V4+ and no significant change in V3+ contents were observed. V3+ and V4+ contents in glasses could be best estimated from optical and electron paramagnetic resonance spectra, respectively.",

author = "Khawaja, \{E. E.\} and Hussain, \{M. Sakhawat\} and Khan, \{M. A.\} and Hwang, \{J. S.\}",

year = "1986",

month = aug,

doi = "10.1007/BF00551494",

language = "English",

volume = "21",

pages = "2812--2818",

journal = "Journal of Materials Science",

issn = "0022-2461",

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T1 - Spectroscopic, electrical and EPR studies of binary semiconducting oxide glasses containing 50 mol% V2O5

AU - Khawaja, E. E.

AU - Hussain, M. Sakhawat

AU - Khan, M. A.

AU - Hwang, J. S.

PY - 1986/8

Y1 - 1986/8

N2 - Recent measurements on the V2O5-GeO2 glass system consisting of an equimolar mixture of V2O5 and GeO2 revealed that increase in electrical conductivity of these glasses upon annealing could be attributed to the increase in V4+ and V3+ content which accompanied the microstructure formation. In the present work we report a similar study on V2O5-TeO2 and V2O5-P2O5 glass systems. It was found that in tellurite glass V3+ content increased upon annealing and V4+ content remained unchanged. In phosphate glass some increase in V4+ and no significant change in V3+ contents were observed. V3+ and V4+ contents in glasses could be best estimated from optical and electron paramagnetic resonance spectra, respectively.

AB - Recent measurements on the V2O5-GeO2 glass system consisting of an equimolar mixture of V2O5 and GeO2 revealed that increase in electrical conductivity of these glasses upon annealing could be attributed to the increase in V4+ and V3+ content which accompanied the microstructure formation. In the present work we report a similar study on V2O5-TeO2 and V2O5-P2O5 glass systems. It was found that in tellurite glass V3+ content increased upon annealing and V4+ content remained unchanged. In phosphate glass some increase in V4+ and no significant change in V3+ contents were observed. V3+ and V4+ contents in glasses could be best estimated from optical and electron paramagnetic resonance spectra, respectively.

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JF - Journal of Materials Science

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