A new approach to gas sensing with nanotechnology
Cited 0 times inCited 7 times in
- A new approach to gas sensing with nanotechnology
- Sharma, Swati; Madou, Mark
- Carbon nanowire; Chemical vapour deposition; Gas sensing; Gas sensor devices; Heat-shock; Low Power; Low power loss; Lower limit of detections; Micro-heaters; Nano-sized; Nanomaterial; Nanostructured metals; Nanowire sensors; Sensor designs; Sensor elements
- Issue Date
- ROYAL SOC
- PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, v.370, no.1967, pp.2448 - 2473
- Nanosized gas sensor elements are potentially faster, require lower power, come with a lower limit of detection, operate at lower temperatures, obviate the need for expensive catalysts, are more heat shock resistant and might even come at a lower cost than their macro-counterparts. In the last two decades, there have been important developments in two key areas that might make this promise a reality. First is the development of a variety of very good performing nanostructured metal oxide semiconductors (MOSs), the most commonly used materials for gas sensing; and second are advances in very low power loss miniaturized heater elements. Advanced nano- or micro-nanogas sensors have attracted much attention owing to a variety of possible applications. In this article, we first discuss the mechanism underlying MOS-based gas sensor devices, then we describe the advances that have been made towards MOS nanostructured materials and the progress towards low-power nano-and microheaters. Finally, we attempt to design an ideal nanogas sensor by combining the best nanomaterial strategy with the best heater implementation. In this regard, we end with a discussion of a suspended carbon nanowire-based gas sensor design and the advantages it might offer compared with other more conventional gas sensor devices.
- ; Go to Link
Appears in Collections:
- SLS_Journal Papers
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.