Morphology and gas sensitivity of nanocomposites based on porous silicon and tin oxide formed using nanosecond pulsed ion beams
For the first time, the morphology of the surface layers of porous silicon, as well as composites based on them formed using highpower pulsed ion beams of nanosecond duration (PIB) with different exposure ratios are analyzed. The results showed that a single radiation exposure is the most rationa...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Omsk State Technical University, Federal State Autonoumos Educational Institution of Higher Education
2020-06-01
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| Series: | Омский научный вестник |
| Subjects: | |
| Online Access: | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2020/3%20(171)/99-105%20%D0%9F%D0%BE%D0%B2%D0%BE%D1%80%D0%BE%D0%B7%D0%BD%D1%8E%D0%BA%20%D0%A1.%20%D0%9D.,%20%D0%A0%D0%BE%D1%81%D0%BB%D0%B8%D0%BA%D0%BE%D0%B2%20%D0%92.%20%D0%95..pdf |
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| Summary: | For the first time, the morphology of the surface layers of porous
silicon, as well as composites based on them formed using highpower pulsed ion beams of nanosecond duration (PIB) with
different exposure ratios are analyzed. The results showed that
a single radiation exposure is the most rational regime for both
porous silicon and composites. With this modification, surface
structures are characterized by higher por-Si and SnOx crystallinity
and uniformity. The gas sensitivity of the structures formed using
PIB to nitrogen dioxide as well as the process of its degradation
over time is studied. It is found that the most promising of all
structures is a por-Si/SnOx composite irradiated with a single PIB
pulse. It has the best gas sensitivity after creation and, with time,
is less susceptible to aging, thus, being the most stable. |
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| ISSN: | 1813-8225 2541-7541 |