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Rare Metals
Erschienen in: Rare Metals 4/2021

23.06.2020

Up-conversion of Nd3+/Yb3+/Tm3+ tri-doped CaTeO3 compound under excitation of 808 nm

verfasst von: Zhong-Qiang Ye, Si-Guo Xiao, Xiao-Liang Yang

Erschienen in: Rare Metals | Ausgabe 4/2021

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Abstract

Nd3+/Yb3+/Tm3+ tri-doped CaTeO3 compounds were prepared by a solid-state reaction method. Bright blue up-conversion (UC) luminescence at around 476 nm, which corresponds to the Tm3+: 1G4 → 3H6 transition, was observed under 808-nm excitation. The Nd3+ → Yb3+ → Tm3+ energy transfer process was responsible for the strong blue up-conversion emission in the tri-doped phosphor. The Tm3+ blue up-conversion emission intensity was strongly dependent on the concentrations of Yb3+ and Nd3+. The possible up-conversion mechanisms for the Nd3+/Yb3+/Tm3+ tri-doped CaTeO3 phosphor are discussed, based on the Nd3+ and Yb3+ concentration-dependent UC spectra, near-infrared luminescence spectra and luminescence decay curves.
Vorheriger Artikel Cycling hydrogen desorption properties and microstructures of MgH2–AlH3–NbF5 hydrogen storage materials
Nächster Artikel Fabrication of nano-grained negative temperature coefficient thermistors with high electrical stability

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Metadaten
Titel
Up-conversion of Nd3+/Yb3+/Tm3+ tri-doped CaTeO3 compound under excitation of 808 nm
verfasst von
Zhong-Qiang Ye
Si-Guo Xiao
Xiao-Liang Yang
Publikationsdatum
23.06.2020
Verlag
Nonferrous Metals Society of China
Erschienen in
Rare Metals / Ausgabe 4/2021
Print ISSN: 1001-0521
Elektronische ISSN: 1867-7185
DOI
https://doi.org/10.1007/s12598-020-01471-9

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