Lviv National Polytechnical University

L'viv, Ukraine

Lviv National Polytechnical University

L'viv, Ukraine

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Vistovskyy V.,Ivan Franko National University of Lviv | Malyy T.,Ivan Franko National University of Lviv | Voloshinovskii A.,Ivan Franko National University of Lviv | Getkin A.,Institute for Scintillation Materials of Ukraine | And 3 more authors.
International Conference on Oxide Materials for Electronic Engineering, OMEE 2012 | Year: 2012

The luminescence properties of LaPO4-Eu and LaPO4-Pr nanoparticles with various sizes (8-50 nm) are studied upon the excitation by VUV and X-ray quanta. The dependences of luminescence intensity on nanoparticle size for nanoparticles LaPO4-Pr and LaPO4-Eu possessing, respectively, by the electron and hole recombination luminescence at the excitation by quanta of various energies are discussed. © 2012 IEEE.


Sergeev V.V.,Lviv National Polytechnical University | Van-Chin-Syan Y.Y.,Lviv National Polytechnical University
Russian Journal of Physical Chemistry A | Year: 2015

The densities of solutions of methacrylic acid in acetonitrile, benzene, hexane, 1,2-dichloroethane, and acetic acid at a temperature of 293 K and atmospheric pressure are determined by means of pycnometry. The values of the excess molar volume for the studied systems and those of the partial molar volumes of the components are calculated. It is found that the excess molar volume of binary systems of methacrylic acid with benzene, hexane, 1,2-dichloroethane, and acetic acid is positive over the range of concentrations and is negative in the methacrylic acid-acetonitrile system. © 2015 Pleiades Publishing, Ltd.

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