ThuliumV1, Main, Exploration, bibRecordById, pubmed:17110158

Strong visible up-conversion emission in Tb3+, Tm3+ and Tb3+-Tm3+ co-doped tellurite glasses sensitized by Yb3+.

Identifieur interne : 001468 ( Main/Exploration ); précédent : 001467; suivant : 001469

Strong visible up-conversion emission in Tb3+, Tm3+ and Tb3+-Tm3+ co-doped tellurite glasses sensitized by Yb3+.

Auteurs : Xunsi Wang [République populaire de Chine] ; Liren Liu ; Qiuhua Nie ; Tiefeng Xu ; Xiang Shen ; Shixun Dai ; Xianghua Zhang

Source :

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy [ 1386-1425 ] ; 2007.

RBID : pubmed:17110158

Descripteurs français

KwdFr :
- Facteurs temps, Ions, Luminescence, Spectrophotométrie (), Tellure (), Terbium (), Thulium (), Verre (), Ytterbium ().
MESH :
- Facteurs temps, Ions, Luminescence, Spectrophotométrie, Tellure, Terbium, Thulium, Verre, Ytterbium.

English descriptors

KwdEn :
- Glass (chemistry), Ions, Luminescence, Spectrophotometry (methods), Tellurium (chemistry), Terbium (chemistry), Thulium (chemistry), Time Factors, Ytterbium (chemistry).
MESH :
- chemical , chemistry : Tellurium, Terbium, Thulium, Ytterbium.
- chemical : Ions.
- chemistry : Glass.
- methods : Spectrophotometry.
- Luminescence, Time Factors.

Abstract

Up-conversion luminescence characteristics under 975 nm excitation have been investigated with Tb3+/Tm3+/Yb3+ triply doped tellurite glasses. Here, green (547 nm: (5)D(4)-->(7)F(4)) and red (660 nm: (5)D(4)-->(7)F(2)) up-conversion (UC) luminescence originating from Tb3+ is observed strongly, because of the quadratic dependences of emission intensities on the excitation power. Especially, the UC luminescence was intensified violently with the energy transfer from the Tm3+ ions involves in the Tb3+ excitation. To the Tb3+/Tm3+/Yb3+ triply doped glass system, a novel up-conversion mechanism is proposed as follows: the energy of (3)G(4) level (Tm3+) was transferred to (5)D(4) (Tb(3+)) and the 477-nm UC luminescence of Tm3+ was nearly quenched.

DOI: 10.1016/j.saa.2006.09.023
PubMed: 17110158

Affiliations:

République populaire de Chine

Le document en format XML

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<front><div type="abstract" xml:lang="en">Up-conversion luminescence characteristics under 975 nm excitation have been investigated with Tb3+/Tm3+/Yb3+ triply doped tellurite glasses. Here, green (547 nm: (5)D(4)-->(7)F(4)) and red (660 nm: (5)D(4)-->(7)F(2)) up-conversion (UC) luminescence originating from Tb3+ is observed strongly, because of the quadratic dependences of emission intensities on the excitation power. Especially, the UC luminescence was intensified violently with the energy transfer from the Tm3+ ions involves in the Tb3+ excitation. To the Tb3+/Tm3+/Yb3+ triply doped glass system, a novel up-conversion mechanism is proposed as follows: the energy of (3)G(4) level (Tm3+) was transferred to (5)D(4) (Tb(3+)) and the 477-nm UC luminescence of Tm3+ was nearly quenched.</div>
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Strong visible up-conversion emission in Tb3+, Tm3+ and Tb3+-Tm3+ co-doped tellurite glasses sensitized by Yb3+.

Strong visible up-conversion emission in Tb3+, Tm3+ and Tb3+-Tm3+ co-doped tellurite glasses sensitized by Yb3+.

Source :

Descripteurs français

English descriptors

Abstract

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

Le document en format XML

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