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Open AccessArticle

High Efficient YVPO4 Luminescent Materials Activated by Europium

1
Faculty of Chemistry, National Research Tomsk State University, Tomsk 634050, Russia
2
Department of Theory of Materials Science, Saint-Petersburg State Institute of Technology, Technical University, St. Petersburg 190013, Russia
3
Laboratory of Gas Lasers, Institute of High Current Electronics SB RAS, Tomsk 634055, Russia
4
Faculty of Radio Design, Tomsk State University of Control Systems and Radioelektroniks, Tomsk 634050, Russia
5
Department of Chemical Engineering, National Central University, Jhongli 32001, Taiwan
*
Author to whom correspondence should be addressed.
Crystals 2019, 9(12), 658; https://doi.org/10.3390/cryst9120658
Received: 22 October 2019 / Revised: 1 December 2019 / Accepted: 5 December 2019 / Published: 9 December 2019
(This article belongs to the Special Issue Synthesis and Characterization of Lanthanide Complexes)
YPO4:Eu, YVO4:Eu, and YVPO4:Eu based phosphors with various Eu(III) activator contents and phosphate-vanadate ratios were synthesized by the self-propagating high-temperature synthesis method. The samples were characterized by scanning electron microscopy, nitrogen sorption, acid-base indicators and photoluminescence. The particle surface features with a finely dispersed structure comprising all the involved elements. The pore structure and the specific surface areas of the samples were different depending on the compositions of the samples. The most finely dispersed sample was YVO4:Eu samples. The specific surface areas of the YPO4:Eu samples were 10 to 15 times greater than those of vanadate samples. The phosphors samples had a slightly basic (YVO4:Eu, YVPO4:Eu) or slightly acidic (YPO4:Eu) properties of the surface with different contents of Lewis and Brönsted sites. The differences in the compositions and acid-base state resulted in the difference in the intensity and brightness of the photoluminescence (PL) of the samples. The yttrium-phosphate-vanadate phosphors of the mixed YVxP1−xO4-Eu had higher brightness and PL intensity than those samples with similar phosphate as well as vanadate phosphors. View Full-Text
Keywords: vanadate-phosphate yttrium phosphors; Eu(III)-activator; surface acidity; photoluminescence vanadate-phosphate yttrium phosphors; Eu(III)-activator; surface acidity; photoluminescence
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Minakova, T.; Mjakin, S.; Bakhmetyev, V.; Sychov, M.; Zyatikov, I.; Ekimova, I.; Kozik, V.; Chen, Y.-W.; Kurzina, I. High Efficient YVPO4 Luminescent Materials Activated by Europium. Crystals 2019, 9, 658.

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