Carbonized polyvinylidene difluoride films irradiated by variable-energy Ar+: Tunable morphology and resistive sensing

Авторы: Nuriahmetov Islam F., Zavidovskiy Ilya A., Khaidarov Abdusame A., Savchenko Natalya F., Tatarintsev Andrey A., Dremov Viacheslav V., Streletskiy Oleg A.
Журнал: Journal of Vacuum Science & Technology B
Том: 42
Номер: 4
Год издания: 2024
Издательство: AIP Publishing
Местоположение издательства: United States
Первая страница: 043401
DOI: 10.1116/6.0003657
Аннотация: In this work, resistive gas sensors based on dehydrohalogenated polyvinylidene difluoride irradiated by variable-energy (500–900 eV) Ar+ ions were investigated. The resulting ion-irradiated polyene-based films were investigated by scanning electron microscopy, energy dispersive x-ray spectroscopy, and Raman spectroscopy. The polyene-based structure was analyzed, and the variation in the films’ morphology, ordering, and graphitization degree with ion energy change was assessed. The resistive sensing response of the obtained composites to ammonia and ethanol was analyzed, revealing the energy- and analyte-dependent shift between positive and negative sensing responses. That allowed us to confirm that the sensing mechanism of the investigated structures is governed by electron or hole transfer induced by the interaction of vapor and the material, which results in various types of responses for the structures with n- and p-type conductivity.
Добавил в систему: Завидовский Илья Алексеевич

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