Visible and far-infrared spectroscopic studies of Co-doped (80x)Sb2O320Na2OxWO3 glasses
Identifieur interne : 000393 ( Main/Exploration ); précédent : 000392; suivant : 000394Visible and far-infrared spectroscopic studies of Co-doped (80x)Sb2O320Na2OxWO3 glasses
Auteurs : P. Petkova [Bulgarie] ; M T Soltani [Algérie] ; S. Petkov [Bulgarie] ; J. Tacheva [Bulgarie] ; V. Nedkov [Bulgarie]Source :
- Physica Scripta [ 0031-8949 ] ; 2012.
Abstract
We investigate the absorption of the glasses (80x)Sb2O320Na2OxWO3 (x mol of WO3) in the spectral regions 1250028571 and 20007800cm1. The samples are doped with 0.01, 0.03 or 0.05mol of Co3O4 and x30. The observed absorption band is due to the Co impurity in the visible spectral region. This absorption band of glasses does not contain information on the exact energy position of the Co levels. Therefore, we have calculated the second derivative of absorption. It has been established that Co2 ions are surrounded by distorted octahedral coordination in the investigated glasses. The energy level structure of the Co2 ion in the samples is also presented. We have calculated the crystal field parameter Dq and the Racah parameters B and C.
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DOI: 10.1088/0031-8949/2012/T149/014057
Affiliations:
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Scr.</title><idno type="ISSN">0031-8949</idno><imprint><publisher>IOP Publishing</publisher><date type="published" when="2012">2012</date><biblScope unit="volume">T149</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="1">1</biblScope><biblScope unit="page" to="4">4</biblScope><biblScope unit="production">Printed in the UK</biblScope></imprint><idno type="ISSN">0031-8949</idno></series><idno type="istex">7D69DDA8C105FE71ECEB3803DBB801D3DC3BE875</idno><idno type="DOI">10.1088/0031-8949/2012/T149/014057</idno><idno type="articleID">420065</idno><idno type="articleNumber">014057</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0031-8949</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">We investigate the absorption of the glasses (80x)Sb2O320Na2OxWO3 (x mol of WO3) in the spectral regions 1250028571 and 20007800cm1. The samples are doped with 0.01, 0.03 or 0.05mol of Co3O4 and x30. The observed absorption band is due to the Co impurity in the visible spectral region. This absorption band of glasses does not contain information on the exact energy position of the Co levels. Therefore, we have calculated the second derivative of absorption. It has been established that Co2 ions are surrounded by distorted octahedral coordination in the investigated glasses. The energy level structure of the Co2 ion in the samples is also presented. We have calculated the crystal field parameter Dq and the Racah parameters B and C.</div></front></TEI><affiliations><list><country><li>Algérie</li><li>Bulgarie</li></country></list><tree><country name="Bulgarie"><noRegion><name sortKey="Petkova, P" sort="Petkova, P" uniqKey="Petkova P" first="P" last="Petkova">P. Petkova</name></noRegion><name sortKey="Nedkov, V" sort="Nedkov, V" uniqKey="Nedkov V" first="V" last="Nedkov">V. Nedkov</name><name sortKey="Petkov, S" sort="Petkov, S" uniqKey="Petkov S" first="S" last="Petkov">S. Petkov</name><name sortKey="Petkova, P" sort="Petkova, P" uniqKey="Petkova P" first="P" last="Petkova">P. Petkova</name><name sortKey="Tacheva, J" sort="Tacheva, J" uniqKey="Tacheva J" first="J" last="Tacheva">J. Tacheva</name></country><country name="Algérie"><noRegion><name sortKey="Soltani, M T" sort="Soltani, M T" uniqKey="Soltani M" first="M T" last="Soltani">M T Soltani</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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