Pavlo D Maryanchuk

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The paper presents research results of the kinetic properties on the basis of the temperature dependence of electrical conductivity and thermoelectric power determined by the coefficient of thermoelectric goodness of Hg<sub>1-x-y</sub>Cd<sub>x</sub>Eu<sub>y</sub>Se crystals.
We report on the analysis of optical, polarimetric, and electrical properties of propolis films and hybrid biomaterial-inorganic heterojunctions based on them. It was shown that the material of the propolis films belongs to wide-bandgap optically active substances with the light-scattering centers, which possess complex optical properties. The values of the(More)
n-CdO/p-Si heterojunction was prepared by means of the deposition of a cadmium oxide thin film (with n-type of conductivity) onto a polished polycrystalline silicon substrate (p-type of conductivity) using the spray-pyrolysis technique. I-V characteristics of the heterojunction were measured at different temperatures and the dominating current transport(More)
Photosensitive heterojunctions n-TiN/p-CdTe were obtained for the first time. The dominating mechanism of current transport through the heterojunctions was determined under forward biases. The heterojunctions produce open circuit voltage V<sub>oc</sub> = 0,35 V, short circuit current I<sub>sc</sub> = 1,88 mA/cm<sup>2</sup> and fill factor FF = 0,51 at(More)
The charge transport mechanism and spectrometric properties of the X-ray and <inline-formula> <tex-math notation="LaTeX">$\gamma $ </tex-math></inline-formula>-ray detectors, fabricated by the deposition of molybdenum oxide thin films onto semi-insulating p-CdTe crystals were studied. The current transport processes in the <inline-formula> <tex-math(More)
We proposed a new type of low-cost and environmentally friendly photoconductive sensor, based on GaSe/graphite nanocomposite fully dry drawn on paper. The proposed fully-drawn nanocomposite sensors successfully utilize the unique combination of structural and electrical properties of a layered semiconductor and graphite. In spite of the relatively pure(More)
Transport properties of the CdTe X/&#x03B3;-ray detectors prepared by the deposition of molybdenum oxide thin films by DC reactive magnetron sputtering onto semi-insulating p-type single-crystal CdTe were studied. Current-voltage characteristics of both detectors with two Ohmic contacts and barrier structure were investigated at different temperatures. The(More)
Cu-Sn-S (CTS) thin films were deposited onto bare and molybdenum (Mo) coated glass substrates by means of the spray pyrolysis technique under different conditions. The CTS thin films obtained are shown, by means of Raman spectroscopy, to consist of two main phases: Cu<sub>2</sub>SnS<sub>3</sub> and Cu<sub>3</sub>SnS<sub>4</sub> as well as of the secondary(More)
The dominating current-transport mechanisms were established: multistep tunnel-recombination via surface states at the metallurgical interface TiO<sub>2</sub>/Si under low forward bias; the dominating mechanism of charge carriers' transport is tunneling at forward bias V &gt; 0.6 V. The reverse current through the heterojunctions under investigation was(More)
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