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Название Synthesis of ytterbium phosphate nanopowders
Автор Vilyanskiy A. M., Zvonchevskaya M. F., Mesyats E. A.
Информация об авторе

National Research Nuclear University MEPhI

A. M. Vilyanskiy, Senior Lecturer, phone: +7 (495) 324-29-25

M. F. Zvonchevskaya, Assistant Professor

E. A. Mesyats, Assistant Professor of a Chair of General Chemistry


Ytterbium orthophosphate refers to the type of monazites crystals and is used as a radiation-resistant ceramic materials. Ceramic or nanocrystalline YbPO4, doped with erbium and thulium belongs to a new class of nonlinear optical materials. The aim of this study was to obtain by solid-phase synthesis of nanocrystalline powders waterless ytterbium phosphate YbPO4 as precursors for doped ceramics. The initial solution was used Yb(NO3)3. By solid-phase synthesis of nanopowders obtained waterless ytterbium phosphate. The influence of the initial concentration of nitrate ytterbium Yb(NO3)3 on the particle size was established: an increase in the concentration of solution Yb(NO3)3 leads to an increase in particle size. Thermal analysis of carried out by heating the samples up to 1200 оC at 10 оC/min. Thermal decomposition analysis of showed that the crystallization occurs with the formation of orthophosphate waterless ytterbium at 650 оC. X-ray Diffraction (XRD) powder YbPO4 performed using a data bank of JCPDS. Diffraction pattern confirms the formation of the nanocrystalline product with a particle size of 5.5 nm. The sample microstructure and the estimate of the particles size is made by using an electron microscope JEOL JSM-6700F with energy dispersive microanalyzer attachment JED-2300F.

Ключевые слова Nanopowder, solid-phase synthesis, ceramic materials, ytterbium ortophosphate, dopping, erbium, thulium
Библиографический список

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2. Lee S. H., Teshima K., Mori S., Endo M., Oishi S. Selective grouth of upconverting YbPO4:Ln (Ln = Er or Tm) crystals in micro reaction cell. Crystal Growth Design. 2010. Vol. 10, No. 4.

3. Gorelik S. S., Skakov Yu. A., Rastorguev L. N. Rentgenograficheskiy i elektronno-opticheskiy analiz (Radiographic and electron optical analysis). Moscow, MISiS, 1994. 328 p.

Language of full-text русский
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