Influence of Y3+, Gd3+, and Lu3+ co-doping on the phase and luminescence properties of monoclinic Eu:LaVO4 particles
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AuthorsVan Deun, Rik
Van Driessche, Isabel
Van Hecke, Kristof
Kaczmarek, Anna M.
Article (Published version)
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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 Ln(3+), whereas the monoclinic-LaVO4 is usually considered not suitable for luminescence and therefore luminescence properties of monoclinic-LaVO4 doped with Ln(3+) ions are seldom investigated. Due to the scarce amount of research on the topic of luminescence of Ln(3+) 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.
Source:Dalton Transactions, 2015, 44, 42, 18418-18426
- Royal Soc Chemistry, Cambridge
- Ghent University [BOFGOA2015000302]
- Research Fund - Flanders (FWO)
- Hercules Foundation [AUGE/09/024, AUGE/11/029]