Title

Luminescence Properties Of Eu3+ Or Dy3+/Au Co-Doped Sio2 Nanoparticles

Keywords

Dysprosium; Europium; Gold nanoparticles; Luminescence; SiO nanoparticles 2

Abstract

Silica nanoparticles, prepared by the Stober method, have been doped with Eu3+, Dy3+, or processed to result in Au nanoparticles on the silica surface. The luminescence of the rare earth (RE)-doped SiO2 particles has been studied as a function of the nature of the RE, their concentration and also of the presence of Au nanoparticles at the surface of the SiO2 nanoparticles. We have shown that the Eu3+ emission is observable over the experimental conditions examined, whereas it was not possible to observe any emission for Dy3+ doped materials. No enhancement of the Eu3+ emission was observed following the adsorption of gold nanoparticles at the surface of the SiO2 nanoparticle, however an excitation at 250 nm leads to both the emission of the matrix and Eu3+ showing an energy transfer from the SiO2 matrix to Eu3+ ions. © 2007 Elsevier B.V. All rights reserved.

Publication Date

6-1-2007

Publication Title

Materials Letters

Volume

61

Issue

14-15

Number of Pages

2879-2882

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.matlet.2007.01.072

Socpus ID

34247464343 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/34247464343

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