The Effect of Operating Modes on the Response of Ammonia Sensors Based on Tin Dioxide Films
Autor: | V. M. Kalygina, N. K. Maksimova, A. V. Tsymbalov, E. V. Chernikov |
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Rok vydání: | 2020 |
Předmět: |
010302 applied physics
Materials science Physics and Astronomy (miscellaneous) Tin dioxide Analytical chemistry chemistry.chemical_element 02 engineering and technology Sputter deposition 021001 nanoscience & nanotechnology 01 natural sciences Oxygen chemistry.chemical_compound Adsorption chemistry 0103 physical sciences Electrode Sapphire Thin film 0210 nano-technology Order of magnitude |
Zdroj: | Technical Physics Letters. 46:480-483 |
ISSN: | 1090-6533 1063-7850 |
DOI: | 10.1134/s1063785020050284 |
Popis: | The influence of operating modes on the response of ammonia sensors based on tin dioxide films has been studied. Samples have been obtained as a result of high-frequency magnetron sputtering of a SnO2:Sb target on sapphire substrates with predeposited Pt electrodes and a heater. Varying the heating cycle duration and reducing the cooling cycle temperature may increase the response by one or two orders of magnitude. The results are explained as being due to the change in the density of chemically adsorbed oxygen on the surface of the SnO2:Sb film depending on the temperature regime. |
Databáze: | OpenAIRE |
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