ThuliumV1, Main, Exploration, bibRecord, 000922

Concentration effect of Tm3+ on cathodoluminescence properties of SiO2:Tm3+ and SiO2:Ho3+,Tm3+ systems

Identifieur interne : 000922 ( Main/Exploration ); précédent : 000921; suivant : 000923

Concentration effect of Tm3+ on cathodoluminescence properties of SiO2:Tm3+ and SiO2:Ho3+,Tm3+ systems

Auteurs : M. S. Dhlamini [Afrique du Sud] ; G. H. Mhlongo [Afrique du Sud] ; H. C. Swart [Afrique du Sud] ; O. M. Ntwaeaborwa [Afrique du Sud] ; K. T. Hillie [Afrique du Sud]

Source :

Physica. B, Condensed matter [ 0921-4526 ] ; 2012.

RBID : Pascal:12-0262761

Descripteurs français

Pascal (Inist)
- Codopage, Cathodoluminescence, Procédé sol gel, Addition holmium, Addition thulium, Microstructure, Dimension particule, Transition niveau énergie, Microscopie électronique balayage, Transition non radiative, Intensité raie, Spectrométrie Auger, Oxyde de silicium, SiO2.

English descriptors

KwdEn :
- AES, Cathodoluminescence, Codoping, Energy-level transitions, Holmium additions, Line intensity, Microstructure, Nonradiative transitions, Particle size, Scanning electron microscopy, Silicon oxides, Sol-gel process, Thulium additions.

Abstract

Cathodoluminescence (CL) properties of SiO₂ powders activated with thulium (Tm³⁺) and holmium (Ho³⁺) ions prepared by a sol-gel process were investigated. Different molar concentrations of Tm³⁺ co-doped with Ho³⁺ were studied. The 460 nm peak was monitored and the influence of the beam energy and concentration of Tm³⁺ ions on the emission properties of this peak was also monitored. The peculiar behavior whereby the 460 nm emission peak decreases and the increase in the 705 and 865 nm peaks with the increase in the concentration of Tm³⁺ ions is reported. The relationship between the accelerating beam voltage and the CL intensity of the blue emission peak (460 nm peak) is established. Morphology, particle size and optical properties were characterized with Scanning electron microscopy (SEM), UV/VIS Lambda 750 S spectrometer and Auger electron spectroscopy (AES) equipped with Ocean Optics S2000, respectively.

Affiliations:

Afrique du Sud

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Le document en format XML

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 and SiO<sub>2</sub>
:Ho<sup>3+</sup>
,Tm<sup>3+</sup>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Concentration effect of Tm<sup>3+</sup>
 on cathodoluminescence properties of SiO<sub>2</sub>
:Tm<sup>3+</sup>
 and SiO<sub>2</sub>
:Ho<sup>3+</sup>
,Tm<sup>3+</sup>
 systems</title>
<author><name sortKey="Dhlamini, M S" sort="Dhlamini, M S" uniqKey="Dhlamini M" first="M. S." last="Dhlamini">M. S. Dhlamini</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Physics, University of South Africa, P.O.Box 392, Unisa</s1>
<s2>Pretoria ZA0003</s2>
<s3>ZAF</s3>
<sZ>1 aut.</sZ>
</inist:fA14>
<country>Afrique du Sud</country>
<wicri:noRegion>Pretoria ZA0003</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Mhlongo, G H" sort="Mhlongo, G H" uniqKey="Mhlongo G" first="G. H." last="Mhlongo">G. H. Mhlongo</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>National Centre for Nano-Structured Materials, Council for Scientific and Industrial Research</s1>
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<s3>ZAF</s3>
<sZ>2 aut.</sZ>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>Afrique du Sud</country>
<wicri:noRegion>Pretoria 0001</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Department of Physics, University of the Free State, P.O.Box 339</s1>
<s2>Bloemfontein ZA9300</s2>
<s3>ZAF</s3>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>Afrique du Sud</country>
<wicri:noRegion>Bloemfontein ZA9300</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Swart, H C" sort="Swart, H C" uniqKey="Swart H" first="H. C." last="Swart">H. C. Swart</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Department of Physics, University of the Free State, P.O.Box 339</s1>
<s2>Bloemfontein ZA9300</s2>
<s3>ZAF</s3>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>Afrique du Sud</country>
<wicri:noRegion>Bloemfontein ZA9300</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Ntwaeaborwa, O M" sort="Ntwaeaborwa, O M" uniqKey="Ntwaeaborwa O" first="O. M." last="Ntwaeaborwa">O. M. Ntwaeaborwa</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Department of Physics, University of the Free State, P.O.Box 339</s1>
<s2>Bloemfontein ZA9300</s2>
<s3>ZAF</s3>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>Afrique du Sud</country>
<wicri:noRegion>Bloemfontein ZA9300</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Hillie, K T" sort="Hillie, K T" uniqKey="Hillie K" first="K. T." last="Hillie">K. T. Hillie</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>National Centre for Nano-Structured Materials, Council for Scientific and Industrial Research</s1>
<s2>Pretoria 0001</s2>
<s3>ZAF</s3>
<sZ>2 aut.</sZ>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>Afrique du Sud</country>
<wicri:noRegion>Pretoria 0001</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Department of Physics, University of the Free State, P.O.Box 339</s1>
<s2>Bloemfontein ZA9300</s2>
<s3>ZAF</s3>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>Afrique du Sud</country>
<wicri:noRegion>Bloemfontein ZA9300</wicri:noRegion>
</affiliation>
</author>
</analytic>
<series><title level="j" type="main">Physica. B, Condensed matter</title>
<title level="j" type="abbreviated">Physica, B Condens. matter</title>
<idno type="ISSN">0921-4526</idno>
<imprint><date when="2012">2012</date>
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<seriesStmt><title level="j" type="main">Physica. B, Condensed matter</title>
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<idno type="ISSN">0921-4526</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>AES</term>
<term>Cathodoluminescence</term>
<term>Codoping</term>
<term>Energy-level transitions</term>
<term>Holmium additions</term>
<term>Line intensity</term>
<term>Microstructure</term>
<term>Nonradiative transitions</term>
<term>Particle size</term>
<term>Scanning electron microscopy</term>
<term>Silicon oxides</term>
<term>Sol-gel process</term>
<term>Thulium additions</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Codopage</term>
<term>Cathodoluminescence</term>
<term>Procédé sol gel</term>
<term>Addition holmium</term>
<term>Addition thulium</term>
<term>Microstructure</term>
<term>Dimension particule</term>
<term>Transition niveau énergie</term>
<term>Microscopie électronique balayage</term>
<term>Transition non radiative</term>
<term>Intensité raie</term>
<term>Spectrométrie Auger</term>
<term>Oxyde de silicium</term>
<term>SiO2</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Cathodoluminescence (CL) properties of SiO<sub>2</sub>
 powders activated with thulium (Tm<sup>3+</sup>
) and holmium (Ho<sup>3+</sup>
) ions prepared by a sol-gel process were investigated. Different molar concentrations of Tm<sup>3+</sup>
 co-doped with Ho<sup>3+</sup>
 were studied. The 460 nm peak was monitored and the influence of the beam energy and concentration of Tm<sup>3+</sup>
 ions on the emission properties of this peak was also monitored. The peculiar behavior whereby the 460 nm emission peak decreases and the increase in the 705 and 865 nm peaks with the increase in the concentration of Tm<sup>3+</sup>
 ions is reported. The relationship between the accelerating beam voltage and the CL intensity of the blue emission peak (460 nm peak) is established. Morphology, particle size and optical properties were characterized with Scanning electron microscopy (SEM), UV/VIS Lambda 750 S spectrometer and Auger electron spectroscopy (AES) equipped with Ocean Optics S2000, respectively.</div>
</front>
</TEI>
<affiliations><list><country><li>Afrique du Sud</li>
</country>
</list>
<tree><country name="Afrique du Sud"><noRegion><name sortKey="Dhlamini, M S" sort="Dhlamini, M S" uniqKey="Dhlamini M" first="M. S." last="Dhlamini">M. S. Dhlamini</name>
</noRegion>
<name sortKey="Hillie, K T" sort="Hillie, K T" uniqKey="Hillie K" first="K. T." last="Hillie">K. T. Hillie</name>
<name sortKey="Hillie, K T" sort="Hillie, K T" uniqKey="Hillie K" first="K. T." last="Hillie">K. T. Hillie</name>
<name sortKey="Mhlongo, G H" sort="Mhlongo, G H" uniqKey="Mhlongo G" first="G. H." last="Mhlongo">G. H. Mhlongo</name>
<name sortKey="Mhlongo, G H" sort="Mhlongo, G H" uniqKey="Mhlongo G" first="G. H." last="Mhlongo">G. H. Mhlongo</name>
<name sortKey="Ntwaeaborwa, O M" sort="Ntwaeaborwa, O M" uniqKey="Ntwaeaborwa O" first="O. M." last="Ntwaeaborwa">O. M. Ntwaeaborwa</name>
<name sortKey="Swart, H C" sort="Swart, H C" uniqKey="Swart H" first="H. C." last="Swart">H. C. Swart</name>
</country>
</tree>
</affiliations>
</record>

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Concentration effect of Tm3+ on cathodoluminescence properties of SiO2:Tm3+ and SiO2:Ho3+,Tm3+ systems

Concentration effect of Tm3+ on cathodoluminescence properties of SiO2:Tm3+ and SiO2:Ho3+,Tm3+ systems

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