Показать сокращенную информацию
Localization and transfer of charge carriers in CuO nanopowder by impedance spectroscopy
Автор | Лепешев, Анатолий Александрович | |
Автор | Дрокин, Николай Александрович | |
Автор | Ушаков, Анатолий Васильевич | |
Автор | Карпов, Игорь Васильевич | |
Автор | Федоров, Леонид Юрьевич | |
Автор | Бачурина, Елена Петровна | |
Дата внесения | 2019-07-01T07:22:23Z | |
Дата, когда ресурс стал доступен | 2019-07-01T07:22:23Z | |
Дата публикации | 2018-07 | |
Библиографическое описание | Лепешев, Анатолий Александрович. Localization and transfer of charge carriers in CuO nanopowder by impedance spectroscopy [Текст] / Анатолий Александрович Лепешев, Николай Александрович Дрокин, Анатолий Васильевич Ушаков, Игорь Васильевич Карпов, Леонид Юрьевич Федоров, Елена Петровна Бачурина // Journal of Materials Science: Materials in Electronics. — 2018. — Т. 29 (№ 14). — С. 12118-12125 | |
ISSN | 09574522 | |
URI (для ссылок/цитирований) | https://link.springer.com/article/10.1007%2Fs10854-018-9319-2 | |
URI (для ссылок/цитирований) | https://elib.sfu-kras.ru/handle/2311/110613 | |
Аннотация | Abstract Particular electro-physical characteristics of CuO nanopowder were investigated by impedance spectroscopy using a sensor based on interdigitated structure in the frequency range from 1 Hz to 100 MHz. The results of investigation were considered. Simulation of impedance spectra by equivalent electric circuits was carried out for numerical approximations of the frequency dependences of the dielectrical permittivity and conductivity. Electric charge accumulation of on the boundaries of nanoparticles and near the metal electrodes of the sensor was revealed. It was shown that a double electric layer is formed near the electrodes, which leads to the appearance of anomalously large values of dielectrical permittivity and an increase in the conductivity in the low-frequency region. The obtained results can be explained by proton conductivity in the nanopowder caused by moisture which is adsorbed on the surface of the nanoparticles. It was shown that after high-temperature annealing of CuO nanopowders, accumulation of electric charges was not observed. It was established that hopping or polaron conductivity occurs in the annealed CuO samples, which increases with increasing electric field frequency according to the power law with a fractional exponent. | |
Тема | plasma-chemical synthesis | |
Тема | nanopowder | |
Тема | impedance | |
Тема | dielectrical permittivity | |
Тема | conductivity | |
Название | Localization and transfer of charge carriers in CuO nanopowder by impedance spectroscopy | |
Тип | Journal Article | |
Тип | Journal Article Preprint | |
Страницы | 12118-12125 | |
ГРНТИ | 29.05.01 | |
Дата обновления | 2019-07-01T07:22:22Z | |
DOI | 10.1007/s10854-018-9319-2 | |
Институт | Институт инженерной физики и радиоэлектроники | |
Институт | Политехнический институт | |
Подразделение | НОЦ (кафедра) ЮНЕСКО "Новые материалы и технологии" | |
Подразделение | Кафедра машиностроения | |
Журнал | Journal of Materials Science: Materials in Electronics | |
Квартиль журнала в Scopus | Q2 | |
Квартиль журнала в Web of Science | Q2 |