Open AccessEffective dielectric permeability and electrical conductivity of polycrystalline PbTe films with disturbed stochiometry
Author(s) -
T. Kh. Akhmedov,
С. М. Отажонов,
M. M. Khalilov,
N. Yunusov,
U. M. Mamadzhanov,
N M Zhuraev
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2131/5/052008
Subject(s) - dielectric , materials science , electrical resistivity and conductivity , conductivity , crystallite , doping , impurity , stoichiometry , polarization (electrochemistry) , condensed matter physics , analytical chemistry (journal) , chemistry , optoelectronics , electrical engineering , chromatography , metallurgy , physics , organic chemistry , engineering
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.