Biography

Oleg V'yunov was born on 12 May 1968 in Kyiv, Ukraine. After secondary school, in 1985-1993 he attended Kyiv Polytechnic Institute (now the National Technical University of Ukraine Igor Sikorsky Kyiv Polytechnic Institute), Faculty of Electronic Engineering. During this time, he also spends 2 years in the Soviet Armed Forces (sergeant). In 1994-1997 he was a Ph.D. student of V.I. Vernadskii Institute of General and Inorganic Chemistry (Kyiv). In 1998, he defended his Ph.D. entitled “Synthesis, Structure, and Properties of Aliovalent-Substituted Titanium Oxides with Perovskite Structure”. Between 1998-2000 he was working at V.I. Vernadsky Institute as a scientist. From 2000 till the present time he continues his work as a senior scientist. He performed several stays in France, where he acquired new knowledge in various instrumental methods of solid-state chemistry. He is the co-author of around 150 peer-reviewed papers in international scientific journals.

Scientific interests are mostly focused on the chemical methods for the synthesis of powders of complex oxide systems and solid solutions, ceramics, and films based on them. Research methods that provide a tool to predict and understand the interrelation between structural, electrical and physical properties of various functional oxide materials.

Grants and diplomas

1. 1996. Grant of the State Committee of Ukraine for Science, Technology, and Industrial Policy for young scientists (№ 103/96 from 11.06.96).
2. 1997. Grant of the President of Ukraine for young scientists (№ 287 from 11.09.96).
3. 1998. Grant of the International Association of Academies of Sciences and the National Academy of Sciences of Ukraine (№ 175 from 27.05.98).
4. 2013. Jubilee diploma of the National Academy of Sciences of Ukraine for a significant personal contribution to the development and promotion of the ideas of V.I. Vernadsky.
5. 2018. Jubilee diploma of the National Academy of Sciences of Ukraine for achievements in solving the most important scientific and scientific-technical problems, implementation of developments in the national economy and practice of socio-cultural construction, training and education, active participation in public life and dedication to conscientious work.

Publications for the last 10 years in professional editions included in the first (Q1) or second (Q2) quartiles

1. Belous, A.; Kobylianska, S.; V’yunov, O.; Torchyniuk, P.; Yukhymchuk, V.; Hreshchuk, O., Effect of non-stoichiometry of initial reagents on morphological and structural properties of perovskites CH₃NH₃PbI₃. Nanoscale Research Letters 2019, 14 (4), 1-9.
2. V’yunov, O.; Reshytko, B.; Belous, A.; Kovalenko, L., Contribution of nanointerfaces to colossal permittivity of doped Ba(Ti,Sn)O₃ ceramics. Applied Nanoscience 2018, 9 (5), 767-773.
3. Belous, A. G.; V’yunov, O. I.; Kobylianska, S. D.; Kovalenko, L. L., Impedance analysis of thin films of organic-inorganic perovskites CH₃NH₃PbI₃ with control of microstructure. Nanoscale Research Letters 2018, 13 (98), 1-7.
4. Daugėla, S.; Kežionis, A.; Šalkus, T.; Orliukas, A. F.; Belous, A. G.; V'yunov, O. I.; Kobylianska, S. D.; Vasylechko, L. O., Peculiarities of ionic conduction in Li_0.5−yNa_yLa_0.5Nb₂O₆ system at high temperatures. Solid State Ionics 2017, 300, 86-90.
5. Plutenko, T. A.; V’yunov, O. I.; Belous, A. G.; Yanchevskii, O. Z., Semi-oxalate synthesis of (1-x)BaTiO₃-xM_0.5Bi_0.5TiO₃ (M = Li, Na, K) PTCR materials. Journal of Advanced Ceramics 2016, 5 (2), 117-125.
6. Kazakevičius, E.; Kežionis, A.; Šalkus, T.; Orliukas, A. F.; V'yunov, O. I.; Kovalenko, L. L.; Belous, A. G., Some aspects of charge transport in Li_0.5-xNa_xLa_0.5TiO₃ (x = 0, 0.25) ceramics. Funct. Mater. Lett. 2015, 8 (6), 1550076-1 – 1550076-5.
7. Jiménez, R.; Díez, V.; Sanz, J.; Kobylianska, S. D.; V'yunov, O. I.; Belous, A. G., Evidence for changes on the lithium conduction dimensionality of Li_0.5−yNa_yLa_0.5Nb₂O₆ (0 ≤ y ≤ 0.5) perovskites. RSC Advances 2015, 5 (35), 27912-27921.
8. Bohnke, O.; Gunes, V.; Kravchyk, K. V.; Belous, A. G.; Yanchevskii, O. Z.; V'yunov, O. I., Ionic and electronic conductivity of 3 mol% Fe₂O₃-substituted cubic yttria-stabilized ZrO₂ (YSZ) and scandia-stabilized ZrO₂ (ScSZ). Solid State Ionics 2014, 262, 517-521.
9. Solovyova, E. D.; Pashkova, E. V.; Ivanitski, V. P.; V′yunov, O. I.; Belous, A. G., Mössbauer and X-ray diffraction study of Co²⁺–Si⁴⁺ substituted M-type barium hexaferrite BaFe_12−2хСо_хSi_хO_19±γ. J. Magn. Magn. Mater. 2013, 330, 72-75.
10. Solopan, S.; V’yunov, O.; Belous, A.; Polek, T.; Tovstolytkin, A., Effect of nanoparticles agglomeration on electrical properties of La_1−xA_xMnO₃ (A = Sr, Ba) nanopowder and ceramic solid solutions. Solid State Sciences 2012, 14 (4), 501-505.
11. Plutenko, T. A.; V'yunov, O. I.; Belous, A. G., Synthesis and electrical characteristics of (1−x)BaTiO₃–xK_0.5Bi_0.5TiO₃ PTCR ceramics. Mater. Chem. Phys. 2012, 136 (1), 167-172.
12. Solopan, S. A.; V’yunov, O. I.; Belous, A. G.; Tovstolytkin, A. I.; Kovalenko, L. L., Magnetoelectric effect in composite structures based on ferroelectric–ferromagnetic perovskites. J. Eur. Ceram. Soc. 2010, 30 (2), 259-263.
13. Domenici, V.; Zupančič, B.; Laguta, V. V.; Belous, A. G.; V’yunov, O. I.; Remškar, M.; Zalar, B. t., PbTiO₃ nanoparticles embedded in a liquid crystalline elastomer matrix: structural and ordering properties. Journal of Physical Chemistry C 2010, 114 (24), 10782-10789.
14. Kravchyk, K. V.; Gomza, Y. P.; Pashkova, O. V.; V’yunov, O. I.; Nesin, S. D.; Belous, A. G., Effect of synthesis conditions on the fractal structure of yttrium-stabilized zirconium dioxide. J. Non-Cryst. Solids 2009, 355 (52), 2557-2561.