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Gas-sensing behaviour of ZnO/diamond nanostructures
Microstructured single- and double-layered sensor devices based on p-type hydrogen-terminated nanocrystalline diamond (NCD) films and/or n-type ZnO nanorods (NRs) have been obtained via a facile microwave-plasma-enhanced chemical vapour deposition process or a hydrothermal growth procedure. The morp...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Beilstein-Institut
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5769078/ https://www.ncbi.nlm.nih.gov/pubmed/29379697 http://dx.doi.org/10.3762/bjnano.9.4 |
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author | Davydova, Marina Laposa, Alexandr Smarhak, Jiri Kromka, Alexander Neykova, Neda Nahlik, Josef Kroutil, Jiri Drahokoupil, Jan Voves, Jan |
author_facet | Davydova, Marina Laposa, Alexandr Smarhak, Jiri Kromka, Alexander Neykova, Neda Nahlik, Josef Kroutil, Jiri Drahokoupil, Jan Voves, Jan |
author_sort | Davydova, Marina |
collection | PubMed |
description | Microstructured single- and double-layered sensor devices based on p-type hydrogen-terminated nanocrystalline diamond (NCD) films and/or n-type ZnO nanorods (NRs) have been obtained via a facile microwave-plasma-enhanced chemical vapour deposition process or a hydrothermal growth procedure. The morphology and crystal structure of the synthesized materials was analysed with scanning electron microscopy, X-ray diffraction measurements and Raman spectroscopy. The gas sensing properties of the sensors based on i) NCD films, ii) ZnO nanorods, and iii) hybrid ZnO NRs/NCD structures were evaluated with respect to oxidizing (i.e., NO(2), CO(2)) and reducing (i.e., NH(3)) gases at 150 °C. The hybrid ZnO NRs/NCD sensor showed a remarkably enhanced NO(2) response compared to the ZnO NRs sensor. Further, inspired by this special hybrid structure, the simulation of interaction between the gas molecules (NO(2) and CO(2)) and hybrid ZnO NRs/NCD sensor was studied using DFT calculations. |
format | Online Article Text |
id | pubmed-5769078 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Beilstein-Institut |
record_format | MEDLINE/PubMed |
spelling | pubmed-57690782018-01-29 Gas-sensing behaviour of ZnO/diamond nanostructures Davydova, Marina Laposa, Alexandr Smarhak, Jiri Kromka, Alexander Neykova, Neda Nahlik, Josef Kroutil, Jiri Drahokoupil, Jan Voves, Jan Beilstein J Nanotechnol Full Research Paper Microstructured single- and double-layered sensor devices based on p-type hydrogen-terminated nanocrystalline diamond (NCD) films and/or n-type ZnO nanorods (NRs) have been obtained via a facile microwave-plasma-enhanced chemical vapour deposition process or a hydrothermal growth procedure. The morphology and crystal structure of the synthesized materials was analysed with scanning electron microscopy, X-ray diffraction measurements and Raman spectroscopy. The gas sensing properties of the sensors based on i) NCD films, ii) ZnO nanorods, and iii) hybrid ZnO NRs/NCD structures were evaluated with respect to oxidizing (i.e., NO(2), CO(2)) and reducing (i.e., NH(3)) gases at 150 °C. The hybrid ZnO NRs/NCD sensor showed a remarkably enhanced NO(2) response compared to the ZnO NRs sensor. Further, inspired by this special hybrid structure, the simulation of interaction between the gas molecules (NO(2) and CO(2)) and hybrid ZnO NRs/NCD sensor was studied using DFT calculations. Beilstein-Institut 2018-01-03 /pmc/articles/PMC5769078/ /pubmed/29379697 http://dx.doi.org/10.3762/bjnano.9.4 Text en Copyright © 2018, Davydova et al. https://creativecommons.org/licenses/by/4.0https://www.beilstein-journals.org/bjnano/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms) |
spellingShingle | Full Research Paper Davydova, Marina Laposa, Alexandr Smarhak, Jiri Kromka, Alexander Neykova, Neda Nahlik, Josef Kroutil, Jiri Drahokoupil, Jan Voves, Jan Gas-sensing behaviour of ZnO/diamond nanostructures |
title | Gas-sensing behaviour of ZnO/diamond nanostructures |
title_full | Gas-sensing behaviour of ZnO/diamond nanostructures |
title_fullStr | Gas-sensing behaviour of ZnO/diamond nanostructures |
title_full_unstemmed | Gas-sensing behaviour of ZnO/diamond nanostructures |
title_short | Gas-sensing behaviour of ZnO/diamond nanostructures |
title_sort | gas-sensing behaviour of zno/diamond nanostructures |
topic | Full Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5769078/ https://www.ncbi.nlm.nih.gov/pubmed/29379697 http://dx.doi.org/10.3762/bjnano.9.4 |
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