Effective dielectric permeability and electrical conductivity of polycrystalline PbTe films with disturbed stochiometry
T. Kh. AkhmedovFergana State University, 19, Murabbylar street, Fergana, 150100, UzbekistanS.M. OtazhonovFergana State University, 19, Murabbylar street, Fergana, 150100, UzbekistanM. M. KhalilovFergana branch of Tashkent University of Information Technologies named after Mukhammad al-Khwarizmi, 185, Mustaqillik street, Fergana, 150118, UzbekistanNurzod YunusovFergana State University, 19, Murabbylar street, Fergana, 150100, Uzbekistan�. U. MamadzhanovFergana State University, 19, Murabbylar street, Fergana, 150100, UzbekistanN M ZhuraevFergana branch of Tashkent University of Information Technologies named after Mukhammad al-Khwarizmi, 185, Mustaqillik street, Fergana, 150118, Uzbekistan
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Abstract This paper presents the study of the effective dielectric constant and electrical conductivity of polycrystalline PbTe films with disturbed stoichiometry. It is shown that superstoichiometric additions of Te and Pb within the limits of solubility by doping with PbTe contribute to a change in a wide range of concentrations of electrically active impurities and, consequently, to an increase in the dielectric constant (ɛ), electrical conductivity (σ) and absorption coefficient (α), in addition, the excess of these components strongly affects the amount of polarization.
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