ThuliumV1, PubMed, Corpus, bibRecord, 000130

Improved multiphoton ultraviolet upconversion photoluminescence in ultrasmall core-shell nanocrystals.

Identifieur interne : 000130 ( PubMed/Corpus ); précédent : 000129; suivant : 000131

Improved multiphoton ultraviolet upconversion photoluminescence in ultrasmall core-shell nanocrystals.

Auteurs : Lili Tao ; Bo Zhou ; Wei Jin ; Yang Chai ; Chun-Yin Tang ; Yuen H. Tsang

Source :

Optics letters [ 1539-4794 ] ; 2014.

RBID : pubmed:25361330

English descriptors

KwdEn :
- Calcium Fluoride (chemistry), Luminescent Measurements, Nanoparticles, Particle Size, Photons, Thulium (chemistry), Ultraviolet Rays, Ytterbium (chemistry).
MESH :
- chemical , chemistry : Calcium Fluoride, Thulium, Ytterbium.
- Luminescent Measurements, Nanoparticles, Particle Size, Photons, Ultraviolet Rays.

Abstract

Near-infrared to ultraviolet multiphoton upconversion photoluminescence in ultrasmall Tm3+/Yb3+-codoped CaF2 nanocrystals (∼6.7 nm in size) was observed and further significantly enhanced by growing an active shell of NaYF4:Yb3+. Owing to the active shell, the lanthanide emitters inside the core are effectively prevented from the surface quenchers, and the excitation energy is absorbed more efficiently via the additional luminescence sensitizer Yb³⁺ embedded in the shell. The details of underlying physics were investigated and discussed. The results present a good ultrasmall luminescent material system for achieving efficient multiphoton upconversion, which shows great potential in versatile industrial and biological applications.

PubMed: 25361330

Links to Exploration step

pubmed:25361330

Le document en format XML

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<author><name sortKey="Tao, Lili" sort="Tao, Lili" uniqKey="Tao L" first="Lili" last="Tao">Lili Tao</name>
</author>
<author><name sortKey="Zhou, Bo" sort="Zhou, Bo" uniqKey="Zhou B" first="Bo" last="Zhou">Bo Zhou</name>
</author>
<author><name sortKey="Jin, Wei" sort="Jin, Wei" uniqKey="Jin W" first="Wei" last="Jin">Wei Jin</name>
</author>
<author><name sortKey="Chai, Yang" sort="Chai, Yang" uniqKey="Chai Y" first="Yang" last="Chai">Yang Chai</name>
</author>
<author><name sortKey="Tang, Chun Yin" sort="Tang, Chun Yin" uniqKey="Tang C" first="Chun-Yin" last="Tang">Chun-Yin Tang</name>
</author>
<author><name sortKey="Tsang, Yuen H" sort="Tsang, Yuen H" uniqKey="Tsang Y" first="Yuen H" last="Tsang">Yuen H. Tsang</name>
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<author><name sortKey="Zhou, Bo" sort="Zhou, Bo" uniqKey="Zhou B" first="Bo" last="Zhou">Bo Zhou</name>
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<author><name sortKey="Jin, Wei" sort="Jin, Wei" uniqKey="Jin W" first="Wei" last="Jin">Wei Jin</name>
</author>
<author><name sortKey="Chai, Yang" sort="Chai, Yang" uniqKey="Chai Y" first="Yang" last="Chai">Yang Chai</name>
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<author><name sortKey="Tang, Chun Yin" sort="Tang, Chun Yin" uniqKey="Tang C" first="Chun-Yin" last="Tang">Chun-Yin Tang</name>
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<author><name sortKey="Tsang, Yuen H" sort="Tsang, Yuen H" uniqKey="Tsang Y" first="Yuen H" last="Tsang">Yuen H. Tsang</name>
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<series><title level="j">Optics letters</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Calcium Fluoride (chemistry)</term>
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<term>Photons</term>
<term>Thulium (chemistry)</term>
<term>Ultraviolet Rays</term>
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<term>Thulium</term>
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<keywords scheme="MESH" xml:lang="en"><term>Luminescent Measurements</term>
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<term>Ultraviolet Rays</term>
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<front><div type="abstract" xml:lang="en">Near-infrared to ultraviolet multiphoton upconversion photoluminescence in ultrasmall Tm3+/Yb3+-codoped CaF2 nanocrystals (∼6.7  nm in size) was observed and further significantly enhanced by growing an active shell of NaYF4:Yb3+. Owing to the active shell, the lanthanide emitters inside the core are effectively prevented from the surface quenchers, and the excitation energy is absorbed more efficiently via the additional luminescence sensitizer Yb³⁺ embedded in the shell. The details of underlying physics were investigated and discussed. The results present a good ultrasmall luminescent material system for achieving efficient multiphoton upconversion, which shows great potential in versatile industrial and biological applications.</div>
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<Title>Optics letters</Title>
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<ArticleTitle>Improved multiphoton ultraviolet upconversion photoluminescence in ultrasmall core-shell nanocrystals.</ArticleTitle>
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<ELocationID EIdType="doi" ValidYN="Y">10.1364/OL.39.006265</ELocationID>
<Abstract><AbstractText>Near-infrared to ultraviolet multiphoton upconversion photoluminescence in ultrasmall Tm3+/Yb3+-codoped CaF2 nanocrystals (∼6.7  nm in size) was observed and further significantly enhanced by growing an active shell of NaYF4:Yb3+. Owing to the active shell, the lanthanide emitters inside the core are effectively prevented from the surface quenchers, and the excitation energy is absorbed more efficiently via the additional luminescence sensitizer Yb³⁺ embedded in the shell. The details of underlying physics were investigated and discussed. The results present a good ultrasmall luminescent material system for achieving efficient multiphoton upconversion, which shows great potential in versatile industrial and biological applications.</AbstractText>
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<MeshHeading><DescriptorName MajorTopicYN="Y" UI="D014466">Ultraviolet Rays</DescriptorName>
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Improved multiphoton ultraviolet upconversion photoluminescence in ultrasmall core-shell nanocrystals.

Improved multiphoton ultraviolet upconversion photoluminescence in ultrasmall core-shell nanocrystals.

Source :

English descriptors

Abstract

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki