Influence of Y3+, Gd3+, and Lu3+ co-doping on the phase and luminescence properties of monoclinic Eu:LaVO4 particles

Rik Van Deun; Micheline D'hooge; Aleksandar Savic; Isabel Van Driessche; Kristof Van Hecke; Anna M. Kaczmarek

doi:10.1039/C5DT03147H

Influence of Y³⁺, Gd³⁺, and Lu³⁺ co-doping on the phase and luminescence properties of monoclinic Eu:LaVO₄ particles†

Rik Van Deun,*^a Micheline D'hooge,^a Aleksandar Savic,^abc Isabel Van Driessche,^d Kristof Van Hecke^b and Anna M. Kaczmarek*^a

Author affiliations

* Corresponding authors

^a L3 – Luminescent Lanthanide Lab, Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281-S3, B-9000 Ghent, Belgium
E-mail: anna.kaczmarek@ugent.be, rik.vandeun@ugent.be

^b XStruct, Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281-S3, B-9000 Ghent, Belgium

^c Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia

^d SCRiPTS, Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281-S3, B-9000 Ghent, Belgium

Abstract

Nano-sized particles of monoclinic-LaVO₄ were prepared in a short reaction time of 30 minutes by employing a microwave assisted hydrothermal synthesis in the presence of glycerol, which was used both as a solvent and structure-directing agent. The tetragonal-LaVO₄ is known to show strong luminescence properties when doped with Ln³⁺, whereas the monoclinic-LaVO₄ is usually considered not suitable for luminescence and therefore luminescence properties of monoclinic-LaVO₄ doped with Ln³⁺ ions are seldom investigated. Due to the scarce amount of research on the topic of luminescence of Ln³⁺ doped monoclinic-LaVO₄ in this paper a detailed study of solid state luminescence properties, including quantum yields, of nano-sized monoclinic-LaVO₄ doped with different molar percentages of Eu³⁺ is presented. It was observed that the 12.5%Eu³⁺ doped sample showed the strongest luminescence properties. Additionally a study of the influence of different rare-earth ions (Y³⁺, Gd³⁺, Lu³⁺) co-doped into the particles was performed in order to explore the potential of increasing the luminescence of these materials. Furthermore stable colloidal suspensions of the Eu³⁺ doped monoclinic-LaVO₄ nanoparticles showing strong red emission could be obtained.

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Article information

DOI: https://doi.org/10.1039/C5DT03147H
Article type: Paper
Submitted: 14 Aug 2015
Accepted: 28 Sep 2015
First published: 29 Sep 2015

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Dalton Trans., 2015,44, 18418-18426

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Influence of Y³⁺, Gd³⁺, and Lu³⁺ co-doping on the phase and luminescence properties of monoclinic Eu:LaVO₄ particles

R. Van Deun, M. D'hooge, A. Savic, I. Van Driessche, K. Van Hecke and A. M. Kaczmarek, Dalton Trans., 2015, 44, 18418 DOI: 10.1039/C5DT03147H

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