| Download | - View accepted manuscript: SnO2/NiO Composite Thin Films for Formaldehyde Detection (PDF, 998 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1109/ICSENS.2010.5690349 |
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| Author | Search for: Dunford, J. L.1; Search for: Tunney, J. J.1; Search for: Du, Xiaomei1 |
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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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| Conference | 9th Annual IEEE Sensors 2010 Conference, Waikoloa, Hawaii, USA, November 1-4, 2010 |
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| Abstract | Formaldehyde (HCHO) is a volatile organic compound that outgasses from textiles and composite wood products, with adverse health effects resulting from prolonged exposure to concentrations of ~10 ppb in air. Commercially available HCHO sensors struggle to detect HCHO at such low concentrations. Tin dioxide (SnO2) / nickel oxide (NiO) poly crystalline composite films have shown sensitivity to ~ 100 ppb via resistance measurements. Here we explore several thin SnU+03B82/NiO films produced by pulsed laser deposition (PLD), varying preparation parameters including NiO loading and substrate temperature during deposition. These variables are shown to affect both composition and morphology, as characterized by XPS, XRD, SEM, and SEM-EDX. Here we report the response time and sensitivity of these sensor materials to HCHO concentrations from ~10 ppb to 1000 ppb at various operating temperatures. |
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| Publication date | 2010-11-04 |
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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 52878 |
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| NPARC number | 17719191 |
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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 | e43d2ba5-6c5b-4e43-a3bd-55864fcd9f4b |
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| Record created | 2011-05-18 |
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| Record modified | 2020-04-17 |
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