Toward hydrogen detection at room temperature with printed ZnO nanoceramics films activated with halogen lighting
| hal.structure.identifier | Laboratoire de l'intégration, du matériau au système [IMS] | |
| dc.contributor.author | NGUYEN, Van Son | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | JUBERA, Veronique | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | GARCIA, Alain | |
| hal.structure.identifier | Laboratoire de l'intégration, du matériau au système [IMS] | |
| dc.contributor.author | DEBÉDA, Hélène | |
| dc.date.created | 2015-12 | |
| dc.date.issued | 2015-12-01 | |
| dc.identifier.issn | 0169-4332 | |
| dc.description.abstractEn | Though semiconducting properties of ZnO have been extensively investigated under hazardous gases, research is still necessary for low-cost sensors working at room temperature. Study of printed ZnO nanopowders-based sensors has been undertaken for hydrogen detection. A ZnO paste made with commercial nanopowders is deposited onto interdigitated Pt electrodes and sintered at 400 °C. The ZnO layer structure and morphology are first examined by XRD, SEM, AFM and emission/excitation spectra prior to the study of the effect of UV-light on the electrical conduction of the semiconductor oxide. The response to hydrogen exposure is subsequently examined, showing that low UV-light provided by halogen lighting enhances the gas response and allows detection at room temperature with gas responses similar to those obtained in dark conditions at 150 °C. A gas response of 44% (relative change in current) under 300 ppm is obtained at room temperature. Moreover, it is demonstrated that very low UV-light power (15 μW/mm2) provided by the halogen lamp is sufficient to give sensitivities as high as those for much higher powers obtained with a UV LED (7.7 mW/mm2). These results are comparable to those obtained by others for 1D or 2D ZnO nanostructures working at room temperature or at temperatures up to 250 °C. | |
| dc.description.sponsorship | Matériaux avancés pour capteurs optiques. - ANR-10-BLAN-0820 | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | ZnO | |
| dc.subject.en | Nanoparticles | |
| dc.subject.en | Screen-printing | |
| dc.subject.en | Gas sensor | |
| dc.subject.en | Hydrogen | |
| dc.subject.en | Halogen activation | |
| dc.title.en | Toward hydrogen detection at room temperature with printed ZnO nanoceramics films activated with halogen lighting | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.apsusc.2015.08.137 | |
| dc.subject.hal | Sciences de l'ingénieur [physics] | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Applied Surface Science | |
| bordeaux.page | 14-21 | |
| bordeaux.volume | 357 | |
| bordeaux.issue | Part A | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01202357 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01202357v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Applied%20Surface%20Science&rft.date=2015-12-01&rft.volume=357&rft.issue=Part%20A&rft.spage=14-21&rft.epage=14-21&rft.eissn=0169-4332&rft.issn=0169-4332&rft.au=NGUYEN,%20Van%20Son&JUBERA,%20Veronique&GARCIA,%20Alain&DEB%C3%89DA,%20H%C3%A9l%C3%A8ne&rft.genre=article |
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