Funct. Mater. 2021; 28 (4): 709-712


Dependence of the nanocomposite "glass-ruthenium compound" electrophysical parameters on the initial component properties

Ya.I.Lepikh, N.M.Sadova, V.A.Borshchak, N.P.Zatovska, A.A.Karpenko

The Interdepartmental Scientific and Educational Physics and Technical Center at MES and NAS of Ukraine, Odessa I.I.Mechnikov National University, 2 Dvoryanskaya Str., 65082 Odesa, Ukraine


The structural-phase transformations in nanocomposite systems "glass - RuO2, Pb2Ru2O6, Bi2Ru2O7 clusters" and their influence on the electrophysical parameters of the nanocomposite system have been studied. It is established that when creating a nanocomposite material, the wettability of particles of a functional material by glass and the glass chemical activity have a great influence on its conductivity. It is established that the main reason for the chemical decomposition of lead ruthenate and the formation of ruthenium dioxide during annealing the heterophase system is the presence of glass components with high acidity. The film resistivity decreases because the electrical conductivity of ruthenium dioxide is two orders of magnitude higher than the electrical conductivity of lead ruthenate. Thus, it is possible to control the parameters of nanocomposite GIS elements. It was revealed that heat treatment of "glass - RuO2, Pb2Ru2O6, Bi2Ru2O7 clusters" systems causes the formation of new phase, as well as the rearrangement of energy zones of the system, which affects the film electrical conductivity.

microelectronic sensors, composite materials, ruthenium oxide, lead ruthenate, ruthenium dioxide, thick-film elements, nanocomposites.
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