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Luminescence properties of YVO4:Ln (Ln=Nd, Yb, and Yb–Er) nanoparticles by V. Buissette; A. Huignard; T. Gacoin; J.-P. Boilot; P. Aschehoug; B. Viana is a Physics and Astronomy article available to read on EtoBox.

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Concentrated colloidal solutions of well dispersed YVO 4 :Ln (Ln 1⁄4 Nd, Yb, and Yb-Er) nanocrystals are synthesized through the precipitation of citrate complexes of rare earth salts with sodium orthovanadate. Luminescence spectra of aqueous suspensions of YVO 4 :Nd or Yb are very similar to the bulk material, with lower lifetimes of the emitting level. After heating at 600 °C, the luminescence properties of silica capped YVO 4 :Ln nanoparticles are significantly improved. In these conditions, YVO 4 :Yb, Er nanoparticles exhibit green up-conversion luminescence and 1.55 lm emission of the erbium ion under infrared excitation of the ytterbium ion.

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Author

V. Buissette; A. Huignard; T. Gacoin; J.-P. Boilot; P. Aschehoug; B. Viana

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0039-6028)

Published

2003

Language

EN

Field

Physics and Astronomy (Physical Sciences)