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Gamma Radiation Sensitization of ZnO/Al2O3 Sensors Based on Nanoheterostructures

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dc.contributor.author LUPAN, Cristian
dc.contributor.author BÎRNAZ, Adrian
dc.contributor.author BUZDUGAN, Artur
dc.contributor.author MAGARIU, Nicolae
dc.contributor.author LUPAN, Oleg
dc.date.accessioned 2023-11-01T11:20:39Z
dc.date.available 2023-11-01T11:20:39Z
dc.date.issued 2023
dc.identifier.citation LUPAN, Cristian, BÎRNAZ, Adrian, BUZDUGAN, Artur et al. Gamma Radiation Sensitization of ZnO/Al2O3 Sensors Based on Nanoheterostructures. In: 6th International Conference on Nanotechnologies and Biomedical Engineering: proc. of ICNBME-2023, 20–23, 2023, Chisinau, vol. 1: Nanotechnologies and Nano-biomaterials for Applications in Medicine, 2023, p. 22-30. ISBN 978-3-031-42774-9. e-ISBN 978-3-031-42775-6. en_US
dc.identifier.isbn 978-3-031-42774-9
dc.identifier.issn 978-3-031-42775-6
dc.identifier.uri https://doi.org/10.1007/978-3-031-42775-6_3
dc.identifier.uri http://repository.utm.md/handle/5014/24578
dc.description Acces full text - https://doi.org/10.1007/978-3-031-42775-6_3 en_US
dc.description.abstract A study of the influence of gamma radiation on the electrical and sensing properties of ZnO/Al2O3 core@shell heterostructure has been carried out in this work. Using as radiation source Cs-137, a low level of ionizing radiation was applied. It was observed that gamma irradiation did not affect the electrical resistance in real time measurements, but changes have been observed once comparing I-V characteristics before and after measurements. Initial gas tests showed that ZnO/Al2O3 heterostructure does not detect volatile organic compounds (VOC) gases in the operating temperature range between 150–200 ℃ and gas concentration up to 100 ppm. Further gas sensing tests, after irradiation, showed that the experimental results are of interest for the gas sensors development based on the ZnO/Al2O3 heterostructure, showing an increase in response value by more than 100% and 200% for 100 ppm 2-propanol and n-butanol VOC gases at operating temperature of 200 and 250 ℃, respectively. These findings can be used for further development of gas sensors in environments with gamma radiation field and for biomedical applications too. en_US
dc.language.iso en en_US
dc.publisher Springer Nature Switzerland en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject zinc oxide en_US
dc.subject aluminium oxide en_US
dc.subject heterostructures en_US
dc.subject gas sensors en_US
dc.subject gamma irradiation en_US
dc.title Gamma Radiation Sensitization of ZnO/Al2O3 Sensors Based on Nanoheterostructures en_US
dc.type Article en_US


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  • 2023
    6th International Conference on Nanotechnologies and Biomedical Engineering, September 20–23, 2023, Chisinau, Moldova

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Attribution-NonCommercial-NoDerivs 3.0 United States Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 United States

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