ThuliumV1, Main, Exploration, bibRecord, 002301

Optical properties of Sm3+ doped lead fluoroborate glasses

Identifieur interne : 002301 ( Main/Exploration ); précédent : 002300; suivant : 002302

Optical properties of Sm3+ doped lead fluoroborate glasses

Auteurs : A. G. Souza Filho [Brésil] ; J. Mendes Filho [Brésil] ; F. E. A. Melo [Brésil] ; M. C. C. Cust Dio [Brésil] ; R. Lebullenger [Brésil] ; A. C. Hernandes [Brésil]

Source :

Journal of Physics and Chemistry of Solids [ 0022-3697 ] ; 2000.

RBID : ISTEX:10697CA4ABE4680DDECDE09855707A9A341742E0

Descripteurs français

Wicri :
- topic : Arad.

English descriptors

Abstract

Abstract: We present a study of emission, absorption and vibrational properties of Sm3+ doped lead fluoroborate glasses (PbO–PbF2–B2O3–Sm2O3) as a function of the Sm3+ content. Changes in the position and the intensity parameters of the transitions are closely related to structural changes in the glass network. A Judd–Ofelt scheme was used to estimate the intensity parameters Ωλ and radiative properties for Sm3+ in the glass. The behaviour of Ω2 and Ω6 parameters suggested a decrease in the asymmetry degree of the local ligand field at Sm3+ sites and an increase in the covalency of Sm–O bond, respectively. This hypothesis was verified by analysing the structural role of Sm2O3 through Raman and infrared spectroscopy measurements.

Url:

https://api.istex.fr/document/10697CA4ABE4680DDECDE09855707A9A341742E0/fulltext/pdf

DOI: 10.1016/S0022-3697(00)00032-9

Affiliations:

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Le document en format XML

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>A. Glasses</term>
<term>Absorption spectra</term>
<term>Additional band</term>
<term>Arad</term>
<term>Asymmetry degree</term>
<term>Binary</term>
<term>Borate</term>
<term>Borate glasses</term>
<term>Boron atoms</term>
<term>Boson peak</term>
<term>C. Infrared spectroscopy</term>
<term>C. Raman spectroscopy</term>
<term>Chem</term>
<term>Collective vibrations</term>
<term>Concentration quenching phenomenon</term>
<term>Content increases</term>
<term>D. Luminescence</term>
<term>Diborate</term>
<term>Diborate groups</term>
<term>Doped</term>
<term>Electronic transition</term>
<term>Elsevier science</term>
<term>Emission bands</term>
<term>Emission properties</term>
<term>Emission spectra</term>
<term>Filho</term>
<term>Frequency region</term>
<term>Glass network</term>
<term>Glass system</term>
<term>Haloborate glasses</term>
<term>High frequency region</term>
<term>Infrared analysis</term>
<term>Infrared measurements</term>
<term>Infrared spectroscopy</term>
<term>Initial state</term>
<term>Intensity parameters</term>
<term>Ion</term>
<term>Local ligand</term>
<term>Lower frequency</term>
<term>Luminescence</term>
<term>Luminescence spectra</term>
<term>Main difference</term>
<term>Mendes filho</term>
<term>Ofelt parameters</term>
<term>Optical absorption</term>
<term>Optical properties</term>
<term>Optical studies</term>
<term>Oscillator</term>
<term>Oscillator strength</term>
<term>Oxygen atoms</term>
<term>Parallel polarisation</term>
<term>Pbo4</term>
<term>Pbo4 pyramid</term>
<term>Pbo4 units</term>
<term>Pentaborate groups</term>
<term>Phys</term>
<term>Polarised raman spectra</term>
<term>Previous works</term>
<term>Radiative lifetime</term>
<term>Radiative transition probability arad</term>
<term>Raman</term>
<term>Raman experiments</term>
<term>Raman spectra</term>
<term>Raman spectroscopy</term>
<term>Raman study</term>
<term>Refractive index</term>
<term>Room temperature</term>
<term>Solid state commun</term>
<term>Souza</term>
<term>Souza filho</term>
<term>Spectral region</term>
<term>Structural changes</term>
<term>Transmission spectra</term>
<term>Uoroborate</term>
<term>Uoroborate glasses</term>
<term>Vibrational</term>
<term>Vibrational properties</term>
<term>Vibrational spectra</term>
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<keywords scheme="Teeft" xml:lang="en"><term>Absorption spectra</term>
<term>Additional band</term>
<term>Arad</term>
<term>Asymmetry degree</term>
<term>Binary</term>
<term>Borate</term>
<term>Borate glasses</term>
<term>Boron atoms</term>
<term>Boson peak</term>
<term>Chem</term>
<term>Collective vibrations</term>
<term>Concentration quenching phenomenon</term>
<term>Content increases</term>
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<term>Diborate groups</term>
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<term>Electronic transition</term>
<term>Elsevier science</term>
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<term>Haloborate glasses</term>
<term>High frequency region</term>
<term>Infrared analysis</term>
<term>Infrared measurements</term>
<term>Infrared spectroscopy</term>
<term>Initial state</term>
<term>Intensity parameters</term>
<term>Ion</term>
<term>Local ligand</term>
<term>Lower frequency</term>
<term>Luminescence</term>
<term>Luminescence spectra</term>
<term>Main difference</term>
<term>Mendes filho</term>
<term>Ofelt parameters</term>
<term>Optical absorption</term>
<term>Optical properties</term>
<term>Optical studies</term>
<term>Oscillator</term>
<term>Oscillator strength</term>
<term>Oxygen atoms</term>
<term>Parallel polarisation</term>
<term>Pbo4</term>
<term>Pbo4 pyramid</term>
<term>Pbo4 units</term>
<term>Pentaborate groups</term>
<term>Phys</term>
<term>Polarised raman spectra</term>
<term>Previous works</term>
<term>Radiative lifetime</term>
<term>Radiative transition probability arad</term>
<term>Raman</term>
<term>Raman experiments</term>
<term>Raman spectra</term>
<term>Raman spectroscopy</term>
<term>Raman study</term>
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<term>Solid state commun</term>
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<term>Souza filho</term>
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<term>Structural changes</term>
<term>Transmission spectra</term>
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<front><div type="abstract" xml:lang="en">Abstract: We present a study of emission, absorption and vibrational properties of Sm3+ doped lead fluoroborate glasses (PbO–PbF2–B2O3–Sm2O3) as a function of the Sm3+ content. Changes in the position and the intensity parameters of the transitions are closely related to structural changes in the glass network. A Judd–Ofelt scheme was used to estimate the intensity parameters Ωλ and radiative properties for Sm3+ in the glass. The behaviour of Ω2 and Ω6 parameters suggested a decrease in the asymmetry degree of the local ligand field at Sm3+ sites and an increase in the covalency of Sm–O bond, respectively. This hypothesis was verified by analysing the structural role of Sm2O3 through Raman and infrared spectroscopy measurements.</div>
</front>
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<name sortKey="Mendes Filho, J" sort="Mendes Filho, J" uniqKey="Mendes Filho J" first="J." last="Mendes Filho">J. Mendes Filho</name>
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Optical properties of Sm3+ doped lead fluoroborate glasses

Optical properties of Sm3+ doped lead fluoroborate glasses

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri