ThuliumV1, Main, Exploration, bibRecord, 000633

Optical characterization of YAl3(BO3)4:Dy3+-Tm3+ phosphors under near UV excitation

Identifieur interne : 000633 ( Main/Exploration ); précédent : 000632; suivant : 000634

Optical characterization of YAl3(BO3)4:Dy3+-Tm3+ phosphors under near UV excitation

Auteurs : G. V. Lokeswara Reddy [Inde] ; L. Rama Moorthy [Inde] ; P. Packiyaraj [Inde] ; B. C. Jamalaiah [Inde, Portugal]

Source :

Optical materials : (Amsterdam) [ 0925-3467 ] ; 2013.

RBID : Pascal:14-0213031

Descripteurs français

Pascal (Inist)
- Luminescence, Photoluminescence, Transfert énergie excitation, Diffraction RX, Chromaticité, Propriété optique, Aluminium Borate, Composé quaternaire, Yttrium Borate, Matériau dopé, Matériau luminescent, Codopage, Matériau optique, Addition dysprosium, Addition thulium, YAl3(BO3)4, Al B O Y, borate d'aluminium yttrium, 4270, 7855.

English descriptors

KwdEn :
- Aluminium Borates, Chromaticity, Codoping, Doped materials, Dysprosium additions, Excitation energy transfer, Luminescence, Optical materials, Optical properties, Phosphors, Photoluminescence, Quaternary compounds, Thulium additions, XRD, Yttrium Borates.

Abstract

Dy³⁺ and Tm³⁺ co-doped YAl₃(BO₃)₄ (YAB) phosphors were prepared by solid-state reaction method at 1200 °C/3 h. The average crystallite size was determined as 52.09 nm from the X-ray diffraction measurements. Upon 352 and 359 nm near ultra violet excitation, the YAB:Dy³⁺-Tm³⁺ phosphors exhibit Dy³⁺:⁴F_9/2 → ⁶H_J(J = 15/2, 13/2, 11/2) and Tm³⁺:¹D₂ → ³F₄ transitions with different luminescence intensity. The photoluminescence emission and decay measurements revealed the energy transfer from Dy³⁺ to Tm³⁺ ions under 359 nm excitation only. The energy transfer between Dy³⁺ and Tm³⁺ takes place in Dy³⁺-Tm³⁺ clusters through exchange interaction mechanism. The Commission International de l'Eclairage chromaticity coordinates of YAB:Tm³⁺ phosphor (λ_ex=359 nm) were found very close to the European Broadcasting Union and National Television Standard Committee illuminants. The emission color of the studied phosphors could be tuned from blue-to-white as a function of excitation wavelength. The YAB:Dy³⁺-Tm³⁺ phosphors can be used as potential candidates in display technology.

Affiliations:

Inde, Portugal

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Le document en format XML

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(BO<sub>3</sub>
)<sub>4</sub>
:Dy<sup>3+</sup>
-Tm<sup>3+</sup>
 phosphors under near UV excitation</title>
<author><name sortKey="Lokeswara Reddy, G V" sort="Lokeswara Reddy, G V" uniqKey="Lokeswara Reddy G" first="G. V." last="Lokeswara Reddy">G. V. Lokeswara Reddy</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Optical characterization of YAl<sub>3</sub>
(BO<sub>3</sub>
)<sub>4</sub>
:Dy<sup>3+</sup>
-Tm<sup>3+</sup>
 phosphors under near UV excitation</title>
<author><name sortKey="Lokeswara Reddy, G V" sort="Lokeswara Reddy, G V" uniqKey="Lokeswara Reddy G" first="G. V." last="Lokeswara Reddy">G. V. Lokeswara Reddy</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Physics, Sri Venkateswara University</s1>
<s2>Tirupati 517 502</s2>
<s3>IND</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>4 aut.</sZ>
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<country>Inde</country>
<wicri:noRegion>Tirupati 517 502</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Rama Moorthy, L" sort="Rama Moorthy, L" uniqKey="Rama Moorthy L" first="L." last="Rama Moorthy">L. Rama Moorthy</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Physics, Sri Venkateswara University</s1>
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<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Inde</country>
<wicri:noRegion>Tirupati 517 502</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Physics, Chadalawada Venkata Subbaiah Engineering College</s1>
<s2>Tirupati 517 506</s2>
<s3>IND</s3>
<sZ>2 aut.</sZ>
</inist:fA14>
<country>Inde</country>
<wicri:noRegion>Tirupati 517 506</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Packiyaraj, P" sort="Packiyaraj, P" uniqKey="Packiyaraj P" first="P." last="Packiyaraj">P. Packiyaraj</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Nanophotonics Lab, Department of Physics, Indian Institute of Technology Delhi</s1>
<s2>New Delhi 110 016</s2>
<s3>IND</s3>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>Inde</country>
<wicri:noRegion>New Delhi 110 016</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Jamalaiah, B C" sort="Jamalaiah, B C" uniqKey="Jamalaiah B" first="B. C." last="Jamalaiah">B. C. Jamalaiah</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Physics, Sri Venkateswara University</s1>
<s2>Tirupati 517 502</s2>
<s3>IND</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Inde</country>
<wicri:noRegion>Tirupati 517 502</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Ceramic and Glass Engineering Department, CICECO, University of Aveiro, Campus Santiago</s1>
<s2>3810-193 Aveiro</s2>
<s3>PRT</s3>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Portugal</country>
<wicri:noRegion>3810-193 Aveiro</wicri:noRegion>
</affiliation>
</author>
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<series><title level="j" type="main">Optical materials : (Amsterdam)</title>
<title level="j" type="abbreviated">Opt. mater. : (Amst.)</title>
<idno type="ISSN">0925-3467</idno>
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<idno type="ISSN">0925-3467</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aluminium Borates</term>
<term>Chromaticity</term>
<term>Codoping</term>
<term>Doped materials</term>
<term>Dysprosium additions</term>
<term>Excitation energy transfer</term>
<term>Luminescence</term>
<term>Optical materials</term>
<term>Optical properties</term>
<term>Phosphors</term>
<term>Photoluminescence</term>
<term>Quaternary compounds</term>
<term>Thulium additions</term>
<term>XRD</term>
<term>Yttrium Borates</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Luminescence</term>
<term>Photoluminescence</term>
<term>Transfert énergie excitation</term>
<term>Diffraction RX</term>
<term>Chromaticité</term>
<term>Propriété optique</term>
<term>Aluminium Borate</term>
<term>Composé quaternaire</term>
<term>Yttrium Borate</term>
<term>Matériau dopé</term>
<term>Matériau luminescent</term>
<term>Codopage</term>
<term>Matériau optique</term>
<term>Addition dysprosium</term>
<term>Addition thulium</term>
<term>YAl3(BO3)4</term>
<term>Al B O Y</term>
<term>borate d'aluminium yttrium</term>
<term>4270</term>
<term>7855</term>
</keywords>
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<front><div type="abstract" xml:lang="en">Dy<sup>3+</sup>
 and Tm<sup>3+</sup>
 co-doped YAl<sub>3</sub>
(BO<sub>3</sub>
)<sub>4</sub>
 (YAB) phosphors were prepared by solid-state reaction method at 1200 °C/3 h. The average crystallite size was determined as 52.09 nm from the X-ray diffraction measurements. Upon 352 and 359 nm near ultra violet excitation, the YAB:Dy<sup>3+</sup>
-Tm<sup>3+</sup>
 phosphors exhibit Dy<sup>3+</sup>
:<sup>4</sup>
F<sub>9/2</sub>
 → <sup>6</sup>
H<sub>J </sub>
(J = 15/2, 13/2, 11/2) and Tm<sup>3+</sup>
:<sup>1</sup>
D<sub>2</sub>
 → <sup>3</sup>
F<sub>4</sub>
 transitions with different luminescence intensity. The photoluminescence emission and decay measurements revealed the energy transfer from Dy<sup>3+</sup>
 to Tm<sup>3+</sup>
 ions under 359 nm excitation only. The energy transfer between Dy<sup>3+</sup>
 and Tm<sup>3+</sup>
 takes place in Dy<sup>3+</sup>
-Tm<sup>3+</sup>
 clusters through exchange interaction mechanism. The Commission International de l'Eclairage chromaticity coordinates of YAB:Tm<sup>3+</sup>
 phosphor (λ<sub>ex </sub>
=<sub> </sub>
359 nm) were found very close to the European Broadcasting Union and National Television Standard Committee illuminants. The emission color of the studied phosphors could be tuned from blue-to-white as a function of excitation wavelength. The YAB:Dy<sup>3+</sup>
-Tm<sup>3+</sup>
 phosphors can be used as potential candidates in display technology.</div>
</front>
</TEI>
<affiliations><list><country><li>Inde</li>
<li>Portugal</li>
</country>
</list>
<tree><country name="Inde"><noRegion><name sortKey="Lokeswara Reddy, G V" sort="Lokeswara Reddy, G V" uniqKey="Lokeswara Reddy G" first="G. V." last="Lokeswara Reddy">G. V. Lokeswara Reddy</name>
</noRegion>
<name sortKey="Jamalaiah, B C" sort="Jamalaiah, B C" uniqKey="Jamalaiah B" first="B. C." last="Jamalaiah">B. C. Jamalaiah</name>
<name sortKey="Packiyaraj, P" sort="Packiyaraj, P" uniqKey="Packiyaraj P" first="P." last="Packiyaraj">P. Packiyaraj</name>
<name sortKey="Rama Moorthy, L" sort="Rama Moorthy, L" uniqKey="Rama Moorthy L" first="L." last="Rama Moorthy">L. Rama Moorthy</name>
<name sortKey="Rama Moorthy, L" sort="Rama Moorthy, L" uniqKey="Rama Moorthy L" first="L." last="Rama Moorthy">L. Rama Moorthy</name>
</country>
<country name="Portugal"><noRegion><name sortKey="Jamalaiah, B C" sort="Jamalaiah, B C" uniqKey="Jamalaiah B" first="B. C." last="Jamalaiah">B. C. Jamalaiah</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>

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Optical characterization of YAl3(BO3)4:Dy3+-Tm3+ phosphors under near UV excitation

Optical characterization of YAl3(BO3)4:Dy3+-Tm3+ phosphors under near UV excitation

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