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Comparison of Thermal Annealing versus Hydrothermal Treatment Effects on the Detection Performances of ZnO Nanowires

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dc.contributor.author LUPAN, Oleg
dc.contributor.author MAGARIU, Nicolae
dc.contributor.author KHALEDIALIDUSTI, Rasoul
dc.contributor.author MISHRA, Abhishek Kumar
dc.contributor.author HANSEN, Sandra
dc.contributor.author KRÜGER, Helge
dc.contributor.author POSTICA, Vasile
dc.contributor.author HEINRICH, Helge
dc.contributor.author VIANA, Bruno
dc.contributor.author ONO, Luis Katsuya
dc.contributor.author CUENYA, Beatriz Roldan
dc.contributor.author CHOW, Lee
dc.contributor.author ADELUNG, Rainer
dc.contributor.author PAUPORTÉ, Thierry
dc.date.accessioned 2022-04-11T11:05:31Z
dc.date.available 2022-04-11T11:05:31Z
dc.date.issued 2021
dc.identifier.citation LUPAN, Oleg, MAGARIU, Nicolae, KHALEDIALIDUSTI, Rasoul et al. Comparison of Thermal Annealing versus Hydrothermal Treatment Effects on the Detection Performances of ZnO Nanowires. In: ACS Applied Materials & Interfaces, 2021, V. 13, N. 8, pp. 10537-10552. ISSN 1944-8252. e-ISSN 1944-8244. en_US
dc.identifier.issn 1944-8252
dc.identifier.issn 1944-8244
dc.identifier.uri http://repository.utm.md/handle/5014/20056
dc.identifier.uri https://doi.org/10.1021/acsami.0c19170
dc.description Access full text - https://doi.org/10.1021/acsami.0c19170 en_US
dc.description.abstract A comparative investigation of the post-electroplating treatment influence on the gas detecting performances of single ZnO nanorod/nanowire (NR/NW), as grown by electrochemical deposition (ECD) and integrated into nanosensor devices, is presented. In this work, hydrothermal treatment (HT) in a H2O steam and conventional thermal annealing (CTA) in a furnace at 150 °C in ambient were used as post-growth treatments to improve the material properties. Herein, the morphological, optical, chemical, structural, vibrational, and gas sensing performances of the as-electrodeposited and treated specimens are investigated and presented in detail. By varying the growth temperature and type of post-growth treatment, the morphology is maintained, whereas the optical and structural properties show increased sample crystallization. It is shown that HT in H2O vapors affects the optical and vibrational properties of the material. After investigation of nanodevices based on single ZnO NR/NWs, it was observed that higher temperature during the synthesis results in a higher gas response to H2 gas within the investigated operating temperature range from 25 to 150 °C. CTA and HT or autoclave treatment showed the capability of a further increase in gas response of the prepared sensors by a factor of ∼8. Density functional theory calculations reveal structural and electronic band changes in ZnO surfaces as a result of strong interaction with H2 gas molecules. Our results demonstrate that high-performance devices can be obtained with high-crystallinity NWs/NRs after HT. The obtained devices could be the key element for flexible nanoelectronics and wearable electronics and have attracted great interest due to their unique specifications. en_US
dc.language.iso en en_US
dc.publisher American Chemical Society 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 nanorods en_US
dc.subject nanowires en_US
dc.subject electroplating treatment en_US
dc.subject electrochemical depositions en_US
dc.subject nanosensors en_US
dc.subject photoluminescence en_US
dc.title Comparison of Thermal Annealing versus Hydrothermal Treatment Effects on the Detection Performances of ZnO Nanowires en_US
dc.type Article en_US


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