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This article is cited in 5 scientific papers (total in 5 papers)
CHEMISTRY AND MATERIAL SCIENCE
The influence of chemical prehistory on the structure, photoluminescent properties, surface and biological characteristics of Zr$_{0.98}$ Eu$_{0.02}$O$_{1.99}$ nanophosphors
A. N. Bugrovab, R. Yu. Smyslovac, A. Yu. Zavialovadb, G. P. Kopitsaef a Institute of Macromolecular Compounds of RAS, Bolshoy pr. 31, 199004 St. Petersburg, Russia
b St. Petersburg Electrotechnical University “LETI”, ul. Professora Popova 5, 197376 St. Petersburg, Russia
c Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya 29, 195251 St. Petersburg, Russia
d St. Petersburg State Institute of Technology (Technical University), Moskovsky prospect 26,
St. Petersburg, 190013, Russia
e St. Petersburg Nuclear Physics Institute, NRC KI, Orlova roscha mcr. 1,
Gatchina, Leningrad region, 188300, Russia
f Grebenshchikov Institute of Silicate Chemistry RAS, Makarova nab. 2., letter B, 199034 St. Petersburg, Russia
Abstract:
ZrO$_2$ nanoparticles doped with 2 mol.% of EuO$_{1.5}$ were obtained from solutions of inorganic salts, zirconium alkoxide and chelating compounds under hydro and solvothermal conditions. The phase compositions of the synthesized nanophosphors were determined using the methods of X-ray diffraction, photoluminescence and Raman spectroscopy. The changes in a particle size, the value of the specific surface area and its charge depending on the conditions of preparation (the type of solvent, isothermal exposure time) and the precursor nature used in the synthesis were considered. It was found that Zr$_{0.98}$ Eu$_{0.02}$O$_{1.99}$ nanoparticles with a high content of the monoclinic phase, synthesized from zirconium and europium acetylacetonates, have the highest luminescence efficiency. At the same time, the maximum photoluminescence lifetime and the least cytotoxicity were characteristic of crystal phosphors with a more symmetrical crystal lattice of the host matrix, as well as a high surface area/volume ratio.
Keywords:
solvothermal synthesis, zirconia, europium, phase transitions, nanoparticles, photoluminescence, fluorescence lifetime, quantum yield, cytotoxicity.
Received: 27.03.2019 Revised: 10.04.2019
Citation:
A. N. Bugrov, R. Yu. Smyslov, A. Yu. Zavialova, G. P. Kopitsa, “The influence of chemical prehistory on the structure, photoluminescent properties, surface and biological characteristics of Zr$_{0.98}$ Eu$_{0.02}$O$_{1.99}$ nanophosphors”, Nanosystems: Physics, Chemistry, Mathematics, 10:2 (2019), 164–175
Linking options:
https://www.mathnet.ru/eng/nano429 https://www.mathnet.ru/eng/nano/v10/i2/p164
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