CO sensing characteristics of In-doped ZnO semiconductor nanoparticles
p. 34-40
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2017
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oai:112.137.131.14:VNU_123-579062017-09-30T19:55:14Z CO sensing characteristics of In-doped ZnO semiconductor nanoparticles Dhahri, R. Hjiri, M. El Mir, L. Alamri, H. Bonavita, A. Iannazzo, D. Leonardi, S.G. Neri, G. In-doped ZnO Nanoparticles Sol-gel Gas sensor Carbon monoxide p. 34-40 A study on the CO sensing characteristics of In-doped ZnO semiconductor nanoparticles (IZO NPs) prepared by a modified solegel technique is reported. The morphological and microstructural features of IZO NPs with various dopant concentrations (1 at.%, 2 at.%, 3 at.%, and 5 at.% In) were investigated by scanning electron microscopy (SEM) and X-ray powder diffraction (XRD). The influence of indium doping on defect characteristics of ZnO was also investigated by photoluminescence (PL). A thickfilm of IZO NPs was deposited by screen printing on an alumina substrate provided with a pair of Pt interdigitated electrodes to fabricate a simple conductometric sensor platform. The as fabricated In-doped ZnO sensors showed enhanced sensitivity to CO gas with respect to pure ZnO one. Sensors with low dopant loading (1 at.% and 2 at.% In) were found to be more sensitive with shorter response and recovery times than those with high dopant loading. 2017-08-23T07:30:10Z 2017-08-23T07:30:10Z 2017 Article 2468-2284 http://repository.vnu.edu.vn/handle/VNU_123/57906 other application/pdf H. : ĐHQGHN |
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Vietnam National University, Hanoi |
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VNU Library & Information Center |
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Vietnam |
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VNU Digital Repository |
| language |
other |
| topic |
In-doped ZnO Nanoparticles Sol-gel Gas sensor Carbon monoxide |
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In-doped ZnO Nanoparticles Sol-gel Gas sensor Carbon monoxide Dhahri, R. Hjiri, M. El Mir, L. Alamri, H. Bonavita, A. Iannazzo, D. Leonardi, S.G. Neri, G. CO sensing characteristics of In-doped ZnO semiconductor nanoparticles |
| description |
p. 34-40 |
| format |
Article |
| author |
Dhahri, R. Hjiri, M. El Mir, L. Alamri, H. Bonavita, A. Iannazzo, D. Leonardi, S.G. Neri, G. |
| author_facet |
Dhahri, R. Hjiri, M. El Mir, L. Alamri, H. Bonavita, A. Iannazzo, D. Leonardi, S.G. Neri, G. |
| author_sort |
Dhahri, R. |
| title |
CO sensing characteristics of In-doped ZnO semiconductor nanoparticles |
| title_short |
CO sensing characteristics of In-doped ZnO semiconductor nanoparticles |
| title_full |
CO sensing characteristics of In-doped ZnO semiconductor nanoparticles |
| title_fullStr |
CO sensing characteristics of In-doped ZnO semiconductor nanoparticles |
| title_full_unstemmed |
CO sensing characteristics of In-doped ZnO semiconductor nanoparticles |
| title_sort |
co sensing characteristics of in-doped zno semiconductor nanoparticles |
| publisher |
H. : ĐHQGHN |
| publishDate |
2017 |
| url |
http://repository.vnu.edu.vn/handle/VNU_123/57906 |
| _version_ |
1680967920458399744 |