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Fluorescence dynamics of YVO4 :Tm3+, YVO4 :Tm3+, Tb3+ and YVO4 :Tm3+, Ho3+ crystals

Identifieur interne : 002851 ( Main/Exploration ); précédent : 002850; suivant : 002852

Fluorescence dynamics of YVO4 :Tm3+, YVO4 :Tm3+, Tb3+ and YVO4 :Tm3+, Ho3+ crystals

Auteurs : M. Bettinelli [Italie] ; F. S. Ermeneux [France] ; R. Moncorge [France] ; E. Cavalli [Italie]

Source :

Journal of physics. Condensed matter [ 0953-8984 ] ; 1998.

RBID : Pascal:98-0456336

Descripteurs français

Pascal (Inist)
- Etude expérimentale, Fluorescence, Addition thulium, Addition terbium, Addition holmium, Yttrium composé, Vanadate, Composé ternaire, Codopage, Etat impureté, Transfert énergie, Interaction dipôle dipôle, Dipôle électrique, Relaxation croisée, Déclin luminescence, 7855H, 7155H, YVO4:Ho Tb Tm, O V Y.

English descriptors

KwdEn :
- Codoping, Cross relaxation, Dipole dipole interaction, Electric dipoles, Energy transfer, Experimental study, Fluorescence, Holmium additions, Impurity states, Luminescence decay, Terbium additions, Ternary compounds, Thulium additions, Vanadates, Yttrium compounds.

Abstract

The fluorescence dynamics of the ³H₄ and ³F₄ energy levels of Tm³⁺ in YVO₄ single crystals codoped or not codoped with Tb³⁺ and Ho³⁺ ions was experimentally investigated and compared with classical energy-transfer models. In the YVO₄:1% Tm³⁺ and YVO₄:1% Tm³⁺, 1% Ho³⁺ crystals, the ³H₄ state relaxes predominantly by internal cross-relaxation-type energy transfers, whereas in the YVO₄:0.5% Tm³⁺.1% Tb³⁺ and YVO₄:1% Tm³⁺, 1% Tb³⁺ crystals the relaxation is dominated by direct energy transfers to the ⁷F₁ state of the Tb³⁺ ions. In all of the codoped systems, strong energy transfers from the ³F₄ state of the Tm³⁺ ions to the ⁷F₁ and ⁵I₇ states of the Tb³⁺ and Ho³⁺ codopants were evident. The electric dipole-electric dipole coupling parameter was evaluated for several cross-relaxation and direct-energy-transfer processes.

Affiliations:

France, Italie

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Le document en format XML

<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Fluorescence dynamics of YVO<sub>4</sub>
 :Tm<sup>3+</sup>
, YVO<sub>4</sub>
 :Tm<sup>3+</sup>
, Tb<sup>3+</sup>
 and YVO<sub>4</sub>
 :Tm<sup>3+</sup>
, Ho<sup>3+</sup>
 crystals</title>
<author><name sortKey="Bettinelli, M" sort="Bettinelli, M" uniqKey="Bettinelli M" first="M." last="Bettinelli">M. Bettinelli</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Dipartimento Scientifico e Tecnologico, Università di Verona, Ca'Vignal, Strada Le Grazie</s1>
<s2>37134 Verona</s2>
<s3>ITA</s3>
<sZ>1 aut.</sZ>
</inist:fA14>
<country>Italie</country>
<wicri:noRegion>37134 Verona</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Ermeneux, F S" sort="Ermeneux, F S" uniqKey="Ermeneux F" first="F. S." last="Ermeneux">F. S. Ermeneux</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS, Université Claude Bemard Lyon I, 43, boulevard du 11 Novembre 1918</s1>
<s2>69622 Villeurbanne</s2>
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<country>France</country>
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<author><name sortKey="Moncorge, R" sort="Moncorge, R" uniqKey="Moncorge R" first="R." last="Moncorge">R. Moncorge</name>
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<s2>69622 Villeurbanne</s2>
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<sZ>3 aut.</sZ>
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<country>France</country>
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</affiliation>
</author>
<author><name sortKey="Cavalli, E" sort="Cavalli, E" uniqKey="Cavalli E" first="E." last="Cavalli">E. Cavalli</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica e Chimica Fisica, Università di Parma, Viale delle Scienze</s1>
<s2>43100 Parma</s2>
<s3>ITA</s3>
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<country>Italie</country>
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<date when="1998">1998</date>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Fluorescence dynamics of YVO<sub>4</sub>
 :Tm<sup>3+</sup>
, YVO<sub>4</sub>
 :Tm<sup>3+</sup>
, Tb<sup>3+</sup>
 and YVO<sub>4</sub>
 :Tm<sup>3+</sup>
, Ho<sup>3+</sup>
 crystals</title>
<author><name sortKey="Bettinelli, M" sort="Bettinelli, M" uniqKey="Bettinelli M" first="M." last="Bettinelli">M. Bettinelli</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Dipartimento Scientifico e Tecnologico, Università di Verona, Ca'Vignal, Strada Le Grazie</s1>
<s2>37134 Verona</s2>
<s3>ITA</s3>
<sZ>1 aut.</sZ>
</inist:fA14>
<country>Italie</country>
<wicri:noRegion>37134 Verona</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Ermeneux, F S" sort="Ermeneux, F S" uniqKey="Ermeneux F" first="F. S." last="Ermeneux">F. S. Ermeneux</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS, Université Claude Bemard Lyon I, 43, boulevard du 11 Novembre 1918</s1>
<s2>69622 Villeurbanne</s2>
<s3>FRA</s3>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>69622 Villeurbanne</wicri:noRegion>
<wicri:noRegion>boulevard du 11 Novembre 1918</wicri:noRegion>
<wicri:noRegion>69622 Villeurbanne</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Moncorge, R" sort="Moncorge, R" uniqKey="Moncorge R" first="R." last="Moncorge">R. Moncorge</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS, Université Claude Bemard Lyon I, 43, boulevard du 11 Novembre 1918</s1>
<s2>69622 Villeurbanne</s2>
<s3>FRA</s3>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>69622 Villeurbanne</wicri:noRegion>
<wicri:noRegion>boulevard du 11 Novembre 1918</wicri:noRegion>
<wicri:noRegion>69622 Villeurbanne</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Cavalli, E" sort="Cavalli, E" uniqKey="Cavalli E" first="E." last="Cavalli">E. Cavalli</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica e Chimica Fisica, Università di Parma, Viale delle Scienze</s1>
<s2>43100 Parma</s2>
<s3>ITA</s3>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Italie</country>
<wicri:noRegion>43100 Parma</wicri:noRegion>
</affiliation>
</author>
</analytic>
<series><title level="j" type="main">Journal of physics. Condensed matter</title>
<title level="j" type="abbreviated">J. phys., Condens. matter</title>
<idno type="ISSN">0953-8984</idno>
<imprint><date when="1998">1998</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><title level="j" type="main">Journal of physics. Condensed matter</title>
<title level="j" type="abbreviated">J. phys., Condens. matter</title>
<idno type="ISSN">0953-8984</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Codoping</term>
<term>Cross relaxation</term>
<term>Dipole dipole interaction</term>
<term>Electric dipoles</term>
<term>Energy transfer</term>
<term>Experimental study</term>
<term>Fluorescence</term>
<term>Holmium additions</term>
<term>Impurity states</term>
<term>Luminescence decay</term>
<term>Terbium additions</term>
<term>Ternary compounds</term>
<term>Thulium additions</term>
<term>Vanadates</term>
<term>Yttrium compounds</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term>
<term>Fluorescence</term>
<term>Addition thulium</term>
<term>Addition terbium</term>
<term>Addition holmium</term>
<term>Yttrium composé</term>
<term>Vanadate</term>
<term>Composé ternaire</term>
<term>Codopage</term>
<term>Etat impureté</term>
<term>Transfert énergie</term>
<term>Interaction dipôle dipôle</term>
<term>Dipôle électrique</term>
<term>Relaxation croisée</term>
<term>Déclin luminescence</term>
<term>7855H</term>
<term>7155H</term>
<term>YVO4:Ho Tb Tm</term>
<term>O V Y</term>
</keywords>
</textClass>
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</teiHeader>
<front><div type="abstract" xml:lang="en">The fluorescence dynamics of the <sup>3</sup>
H<sub>4</sub>
 and <sup>3</sup>
F<sub>4</sub>
 energy levels of Tm<sup>3+</sup>
 in YVO<sub>4</sub>
 single crystals codoped or not codoped with Tb<sup>3+</sup>
 and Ho<sup>3+</sup>
 ions was experimentally investigated and compared with classical energy-transfer models. In the YVO<sub>4</sub>
:1% Tm<sup>3+</sup>
 and YVO<sub>4</sub>
:1% Tm<sup>3+</sup>
, 1% Ho<sup>3+</sup>
 crystals, the <sup>3</sup>
H<sub>4</sub>
 state relaxes predominantly by internal cross-relaxation-type energy transfers, whereas in the YVO<sub>4</sub>
:0.5% Tm<sup>3+</sup>
.1% Tb<sup>3+</sup>
 and YVO<sub>4</sub>
:1% Tm<sup>3+</sup>
, 1% Tb<sup>3+</sup>
 crystals the relaxation is dominated by direct energy transfers to the <sup>7</sup>
F<sub>1</sub>
 state of the Tb<sup>3+</sup>
 ions. In all of the codoped systems, strong energy transfers from the <sup>3</sup>
F<sub>4</sub>
 state of the Tm<sup>3+</sup>
 ions to the <sup>7</sup>
F<sub>1</sub>
 and <sup>5</sup>
I<sub>7</sub>
 states of the Tb<sup>3+</sup>
 and Ho<sup>3+</sup>
 codopants were evident. The electric dipole-electric dipole coupling parameter was evaluated for several cross-relaxation and direct-energy-transfer processes.</div>
</front>
</TEI>
<affiliations><list><country><li>France</li>
<li>Italie</li>
</country>
</list>
<tree><country name="Italie"><noRegion><name sortKey="Bettinelli, M" sort="Bettinelli, M" uniqKey="Bettinelli M" first="M." last="Bettinelli">M. Bettinelli</name>
</noRegion>
<name sortKey="Cavalli, E" sort="Cavalli, E" uniqKey="Cavalli E" first="E." last="Cavalli">E. Cavalli</name>
</country>
<country name="France"><noRegion><name sortKey="Ermeneux, F S" sort="Ermeneux, F S" uniqKey="Ermeneux F" first="F. S." last="Ermeneux">F. S. Ermeneux</name>
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<name sortKey="Moncorge, R" sort="Moncorge, R" uniqKey="Moncorge R" first="R." last="Moncorge">R. Moncorge</name>
</country>
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</record>

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Fluorescence dynamics of YVO4 :Tm3+, YVO4 :Tm3+, Tb3+ and YVO4 :Tm3+, Ho3+ crystals

Fluorescence dynamics of YVO4 :Tm3+, YVO4 :Tm3+, Tb3+ and YVO4 :Tm3+, Ho3+ crystals

Source :

Descripteurs français

English descriptors

Abstract

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

Le document en format XML

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