WO3-Au-Pt nanocrystalline thin films as optical gas sensors.
WO3 thin films with peculiar morphology were synthesized using sputtering technique, acid boiling and heat treatment. Samples were subsequently impregnated with Au and Pt ions that were reduced to noble metal nanoparticles with high temperature annealing. Structural and morphological characterizatio...
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| Format: | Article |
| Language: | English |
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American Scientific Publishers
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/23502/ http://psasir.upm.edu.my/id/eprint/23502/1/WO3.pdf |
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| author | Gaspera, E. Della Martucci, A. Yaacob, Mohd. Hanif Ou, J. Kalantar-Zadeh, K. Wlodarski, W. |
| author_facet | Gaspera, E. Della Martucci, A. Yaacob, Mohd. Hanif Ou, J. Kalantar-Zadeh, K. Wlodarski, W. |
| author_sort | Gaspera, E. Della |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | WO3 thin films with peculiar morphology were synthesized using sputtering technique, acid boiling and heat treatment. Samples were subsequently impregnated with Au and Pt ions that were reduced to noble metal nanoparticles with high temperature annealing. Structural and morphological characterizations confirm the distinctive lamellar shape of WO3 crystals and the presence of Au and Pt nanoparticles. Optical gas sensing tests on selected samples show good sensitivity towards H2, CO and H2S, highlighting a different role played by Au and Pt nanoparticles according to operating temperature. Moreover the sensor response for some samples is wavelength dependent, giving the opportunity to tune the performances of the material by selecting the operative wavelength of analysis. |
| first_indexed | 2025-11-15T08:36:17Z |
| format | Article |
| id | upm-23502 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T08:36:17Z |
| publishDate | 2011 |
| publisher | American Scientific Publishers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-235022015-11-26T08:53:32Z http://psasir.upm.edu.my/id/eprint/23502/ WO3-Au-Pt nanocrystalline thin films as optical gas sensors. Gaspera, E. Della Martucci, A. Yaacob, Mohd. Hanif Ou, J. Kalantar-Zadeh, K. Wlodarski, W. WO3 thin films with peculiar morphology were synthesized using sputtering technique, acid boiling and heat treatment. Samples were subsequently impregnated with Au and Pt ions that were reduced to noble metal nanoparticles with high temperature annealing. Structural and morphological characterizations confirm the distinctive lamellar shape of WO3 crystals and the presence of Au and Pt nanoparticles. Optical gas sensing tests on selected samples show good sensitivity towards H2, CO and H2S, highlighting a different role played by Au and Pt nanoparticles according to operating temperature. Moreover the sensor response for some samples is wavelength dependent, giving the opportunity to tune the performances of the material by selecting the operative wavelength of analysis. American Scientific Publishers 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/23502/1/WO3.pdf Gaspera, E. Della and Martucci, A. and Yaacob, Mohd. Hanif and Ou, J. and Kalantar-Zadeh, K. and Wlodarski, W. (2011) WO3-Au-Pt nanocrystalline thin films as optical gas sensors. Sensor Letters, 9 (2 ). pp. 595-599. ISSN 1546-198X; ESSN:1546-1971 http://www.aspbs.com/ 10.1166/sl.2011.1570 |
| spellingShingle | Gaspera, E. Della Martucci, A. Yaacob, Mohd. Hanif Ou, J. Kalantar-Zadeh, K. Wlodarski, W. WO3-Au-Pt nanocrystalline thin films as optical gas sensors. |
| title | WO3-Au-Pt nanocrystalline thin films as optical gas sensors. |
| title_full | WO3-Au-Pt nanocrystalline thin films as optical gas sensors. |
| title_fullStr | WO3-Au-Pt nanocrystalline thin films as optical gas sensors. |
| title_full_unstemmed | WO3-Au-Pt nanocrystalline thin films as optical gas sensors. |
| title_short | WO3-Au-Pt nanocrystalline thin films as optical gas sensors. |
| title_sort | wo3-au-pt nanocrystalline thin films as optical gas sensors. |
| url | http://psasir.upm.edu.my/id/eprint/23502/ http://psasir.upm.edu.my/id/eprint/23502/ http://psasir.upm.edu.my/id/eprint/23502/ http://psasir.upm.edu.my/id/eprint/23502/1/WO3.pdf |