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TECHNOLOGIES FOR PRODUCTION AND UTILIZATION OF REM
ArticleName Synthesis of ytterbium phosphate nanopowders
ArticleAuthor Vilyanskiy A. M., Zvonchevskaya M. F., Mesyats E. A.
ArticleAuthorData

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

Abstract

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.

keywords Nanopowder, solid-phase synthesis, ceramic materials, ytterbium ortophosphate, dopping, erbium, thulium
References

1. Vennerberg D., Lin Z. Upconversion nanocrystals: synthesis, properties, assembly and applications. Science Advanced Materials. 2011. Vol. 3. No. 1.

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.

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