Efficient white light emission by upconversion in Yb3+-, Er3+- and Tm3+-doped Y2BaZnO5

Isabelle Etchart; Mathieu Bérard; Marine Laroche; Arnaud Huignard; Ignacio Hernández; William P. Gillin; Richard J. Curry; Anthony K. Cheetham

doi:10.1039/C1CC11427A

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Efficient white light emission by upconversion in Yb³⁺-, Er³⁺- and Tm³⁺-doped Y₂BaZnO₅†

Isabelle Etchart,^ab Mathieu Bérard,^b Marine Laroche,^b Arnaud Huignard,^b Ignacio Hernández,^c William P. Gillin,^c Richard J. Curry^d and Anthony K. Cheetham*^a

Author affiliations

* Corresponding authors

^a Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge, UK
E-mail: akc30@cam.ac.uk

^b Saint-Gobain Recherche, 39 quai Lucien Lefranc, 93303 Aubervilliers, France

^c Department of Physics, Queen Mary University of London, Mile End Road, London, UK

^d Advanced Technology Institute, University of Surrey, Guildford, Surrey, UK

Abstract

We report efficient white upconversion luminescence in Yb³⁺-, Er³⁺- and Tm³⁺-doped monophasic and biphasic Y₂BaZnO₅ phosphors under 977 nm near-infrared excitation and at low excitation power densities (down to ∼25 mW mm⁻²).

This article is part of the themed collection: In celebration of Tony Cheetham’s 70th birthday

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Article information

DOI: https://doi.org/10.1039/C1CC11427A
Article type: Communication
Submitted: 11 Mar 2011
Accepted: 06 Apr 2011
First published: 04 May 2011

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Chem. Commun., 2011,47, 6263-6265

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Efficient white light emission by upconversion in Yb³⁺-, Er³⁺- and Tm³⁺-doped Y₂BaZnO₅

I. Etchart, M. Bérard, M. Laroche, A. Huignard, I. Hernández, W. P. Gillin, R. J. Curry and A. K. Cheetham, Chem. Commun., 2011, 47, 6263 DOI: 10.1039/C1CC11427A

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