Fluorescence dynamics of YVO4 :Tm3+, YVO4 :Tm3+, Tb3+ and YVO4 :Tm3+, Ho3+ crystals
Identifieur interne : 002A33 ( Main/Merge ); précédent : 002A32; suivant : 002A34Fluorescence 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.
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 :
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.
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Pascal:98-0456336Le 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>
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</author>
<author><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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<s2>69622 Villeurbanne</s2>
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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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</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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<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>
</profileDesc>
</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>
</noRegion>
<name sortKey="Moncorge, R" sort="Moncorge, R" uniqKey="Moncorge R" first="R." last="Moncorge">R. Moncorge</name>
</country>
</tree>
</affiliations>
</record>
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