Controlling surface functional composition and improving the gas-sensing properties of metal oxide sensors by electron beam processing
- Autores: Nalimova S.1, Myakin S.2, Moshnikov V.1
-
Afiliações:
- Ul’yanov-Lenin St. Petersburg State Electrotechnical University (LETI)
- St. Petersburg State Technological Institute (Technical University)
- Edição: Volume 42, Nº 6 (2016)
- Páginas: 597-601
- Seção: Article
- URL: https://journals.rcsi.science/1087-6596/article/view/215793
- DOI: https://doi.org/10.1134/S1087659616060171
- ID: 215793
Citar
Resumo
It has been established that the electron beam processing of the ZnO–SiO2 and SnO2–SiO2 thinfilm gas sensors synthesized using the sol-gel method at an electron energy of 900 keV and an absorbed dose of 50 to 200 kGy leads to a significant increase in their sensitivity towards acetone and isopropanol vapors. It is found that the observed effect, which is enhanced with an increase in the absorbed dose, is correlated to an increase in the concentration of the Brønsted acid sites which are formed under the influence of accelerated electrons and capable of reacting to the molecules of the detected substances.
Palavras-chave
Sobre autores
S. Nalimova
Ul’yanov-Lenin St. Petersburg State Electrotechnical University (LETI)
Email: vamoshnikov@mail.ru
Rússia, ul. Prof. Popova 5, St. Petersburg, 197376
S. Myakin
St. Petersburg State Technological Institute (Technical University)
Email: vamoshnikov@mail.ru
Rússia, Moskovskii pr. 26, St. Petersburg, 190013
V. Moshnikov
Ul’yanov-Lenin St. Petersburg State Electrotechnical University (LETI)
Autor responsável pela correspondência
Email: vamoshnikov@mail.ru
Rússia, ul. Prof. Popova 5, St. Petersburg, 197376