Morphology and Luminescence of Nanocrystalline Nb2O5 Doped with Eu3+

Falcomer, Daniele; Speghini, Adolfo; Ibba, Giulio; Enzo, Stefano; Cannas, Carla; Musinu, Anna; Bettinelli, Marco

doi:https://doi.org/10.1155/2007/94975

Journal of Nanomaterials

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Luminescent Nanomaterials

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Research Article | Open Access

Volume 2007 | Article ID 094975 | https://doi.org/10.1155/2007/94975

Morphology and Luminescence of Nanocrystalline Nb₂O₅ Doped with Eu³⁺

Daniele Falcomer,¹Adolfo Speghini,¹Giulio Ibba,²Stefano Enzo,²Carla Cannas,³Anna Musinu,³and Marco Bettinelli¹

Academic Editor: Wieslaw Strek

Received12 Mar 2007

Accepted04 Jun 2007

Published10 Jul 2007

Abstract

The synthesis of nanocrystalline Nb2O5:Eu3+ has been achieved by using a Pechini procedure. The obtained materials are single-phase niobia with the orthorhombic structure, average crystallite size around 25 nm and average lattice strain of about 0.002. TEM images show that the particles are rectangular and reasonably isolated. The luminescence of the Eu3+ ions in the niobia lattice is efficient and affected by a strong inhomogeneous broadening, due to an important disorder around the lanthanide ions.

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Copyright © 2007 Daniele Falcomer et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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