Interplay of spin-allowed and spin-forbidden 5d-4f luminescence from rare earth ions
Identifieur interne : 001393 ( Main/Curation ); précédent : 001392; suivant : 001394Interplay of spin-allowed and spin-forbidden 5d-4f luminescence from rare earth ions
Auteurs : V. N. Makhov [Estonie, Russie] ; T. Adamberg [Estonie] ; M. Kirm [Estonie] ; S. Vielhauer [Estonie] ; G. Stryganyuk [Allemagne]Source :
- Journal of luminescence [ 0022-2313 ] ; 2008.
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- Pascal (Inist)
- Wicri :
- topic : Dopage.
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- KwdEn :
Abstract
The conditions for co-existence of emissions from spin-allowed and spin-forbidden 5d-4f transitions in rare earth ions and for thermal quenching of these emissions have been analyzed by taking Tm3+ 5d-4f luminescence in LiYF4:Tm3+ and Lu3+ 5d-4f luminescence in LuF3 as examples. It is shown that temperature behavior of 5d-4f luminescence agrees with the common trends in decreasing energy splitting between the lowest high-spin and low-spin 5d levels as well as decreasing energy gap between the lowest 5d level and the bottom of the conduction band of the host crystal towards heavier rare earth ions (from Er3+ to Lu3+).
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Interplay of spin-allowed and spin-forbidden 5d-4f luminescence from rare earth ions</title>
<author><name sortKey="Makhov, V N" sort="Makhov, V N" uniqKey="Makhov V" first="V. N." last="Makhov">V. N. Makhov</name>
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<series><title level="j" type="main">Journal of luminescence</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Allowed transition</term>
<term>Doping</term>
<term>Energy-level transitions</term>
<term>Extreme ultraviolet radiation</term>
<term>Forbidden transitions</term>
<term>Lithium fluoride</term>
<term>Photoluminescence</term>
<term>Quenching</term>
<term>Thulium additions</term>
<term>Yttrium fluoride</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Photoluminescence</term>
<term>Transition interdite</term>
<term>Rayonnement UV extrême</term>
<term>Trempe</term>
<term>Transition permise</term>
<term>Transition niveau énergie</term>
<term>Dopage</term>
<term>Addition thulium</term>
<term>Fluorure de lithium</term>
<term>Fluorure d'yttrium</term>
<term>LiYF4</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Dopage</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">The conditions for co-existence of emissions from spin-allowed and spin-forbidden 5d-4f transitions in rare earth ions and for thermal quenching of these emissions have been analyzed by taking Tm<sup>3+</sup>
5d-4f luminescence in LiYF<sub>4</sub>
:Tm<sup>3+</sup>
and Lu<sup>3+</sup>
5d-4f luminescence in LuF<sub>3</sub>
as examples. It is shown that temperature behavior of 5d-4f luminescence agrees with the common trends in decreasing energy splitting between the lowest high-spin and low-spin 5d levels as well as decreasing energy gap between the lowest 5d level and the bottom of the conduction band of the host crystal towards heavier rare earth ions (from Er<sup>3+</sup>
to Lu<sup>3+</sup>
).</div>
</front>
</TEI>
</record>
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