| Download | - View accepted manuscript: Colloidal approach to Au-loaded TiO₂ thin films with optimized optical sensing properties (PDF, 849 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1039/c0jm03494k |
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| Author | Search for: Gaspera, Enrico Della; Search for: Antonello, Alessandro; Search for: Guglielmi, Massimo; Search for: Post, Michael L.1; Search for: Bello, Valentina; Search for: Mattei, Giovanni; Search for: Romanato, Filippo |
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| Affiliation | - National Research Council of Canada. NRC Institute for Chemical Process and Environmental Technology
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| Format | Text, Article |
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| Abstract | TiO2 and Au nanoparticles are synthesized by the colloidal technique and used for nanocomposite thin film preparation. The effect of thermal treatment and organic template presence is analyzed in order to tailor film microstructure. The Au-TiO2 interfaces as well as the overall porosity of the films are analyzed combining structural and morphological characterization along with spectroscopic ellipsometry and surface plasmon spectroscopy analyses. An efficient surrounding of TiO2 nanoparticles around Au colloids is obtained, leading to an extensive noble metal-metal oxide interface, improving functional properties of the films, while keeping a porous structure. Gas sensing tests are performed on these nanocomposites films: reversible sensing dynamics for CO detection are observed with high sensitivity and a correlation between response and recovery times and microstructure is reported. |
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| Publication date | 2011-02-14 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 52225 |
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| NPARC number | 18231008 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 110a8682-6443-4ef0-a845-e7bedb4153e4 |
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| Record created | 2011-07-08 |
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| Record modified | 2020-04-21 |
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