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Properties of porous silicon precipitated with nickel for gas sensorsстатья Исследовательская статья
Дата последнего поиска статьи во внешних источниках: 11 апреля 2019 г.
- Авторы: Ekaterina Soboleva, Pavel Geydt, Ivan Zakharchuk, Yulia Spivak, Vyacheslav Moshnikov, Erkki Lähderanta
- Журнал: Sensor Letters
- Том: 16
- Номер: 9
- Год издания: 2018
- Издательство: American Scientific Publishers
- Местоположение издательства: United States
- Первая страница: 672
- Последняя страница: 676
- DOI: 10.1166/sl.2018.4015
- Аннотация: The preparation and properties of modified porous silicon is discussed and a proposal of a sensitive layer for a gas detector is presented. The modification is done by precipitation and electrochemical deposition of nickel. The morphology of sample surfaces is examined by atomic force microscopy and scanning electron microscopy (SEM). SEM-coupled energy dispersive spectroscopy is used to analyse the chemical composition of the samples. Magnetic response is measured with a SQUID magnetometer. Electrochemical impedance spectroscopy is used to study the sensitivity of the samples to isopropanol vapour in the presence of alternating electric current. A series of samples prepared with a higher anodic current density show higher sensitivity to isopropanol vapours in comparison to a lower anodic current.
- Добавил в систему: Гейдт Павел Викторович