Тип публикации: статья из журнала
Год издания: 2023
Идентификатор DOI: 10.1134/s0020168523070075
Ключевые слова: copper oxide, arc discharge, dielectric permittivity, electrical conductivity, inorganic chemistry, Industrial Chemistry/Chemical Engineering, materials science, general
Аннотация: We have studied the effect of the size of copper oxide nanoparticles on their electrical transport properties. The nanoparticles have been synthesized by vacuum arc deposition and characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and electron microscopy in order to determine their phase composition and size. TheПоказать полностьюresults demonstrate that raising the substrate temperature in the deposition process from 300 to 600 K increases the size of the forming nanoparticles from 5.4 to 37.7 nm. The frequency dependences of the electrical conductivity, dielectric permittivity, and dielectric loss tangent of the CuO nanoparticles in the range form 20 Hz to 1 MHz are influenced by their size. In the size range under consideration, distinctions in the dielectric properties of the nanoparticles can be understood in terms of the competing contributions of the competing contributions of the resistive and capacitive components for the particles and grain/particle boundaries.
Журнал: Inorganic Materials
Выпуск журнала: Т.59, №7
Номера страниц: 757-764
ISSN журнала: 00201685
Место издания: Москва
Издатель: Pleiades Publishing, Ltd. (Плеадес Паблишинг, Лтд)