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

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.This is the peer-reviewed version of the following article: Van Deun, R.; D’Hooge, M.; Savic, A.; Van Driessche, I.; Van Hecke, K.; Kaczmarek, A. M. Influence of Y3+, Gd3+, and Lu3+ Co-Doping on the Phase and Luminescence Properties of Monoclinic Eu:LaVO4 Particles. Dalton Transactions 2015, 44 (42), 18418–18426. [https://doi.org/10.1039/c5dt03147h]Supplementary material: [http://cherry.chem.bg.ac.rs/handle/123456789/3380