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Single-walled carbon nanotubes as a chemical sensor for SO2 detection
- Authors
- Yu, SeGi; Yi, Whikun
- Issue Date
- Sep-2007
- Publisher
- Institute of Electrical and Electronics Engineers
- Keywords
- chemical sensor; I-V curve; single-walled carbon nanotube; sulfur dioxide
- Citation
- IEEE Transactions on Nanotechnology, v.6, no.5, pp 545 - 548
- Pages
- 4
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE Transactions on Nanotechnology
- Volume
- 6
- Number
- 5
- Start Page
- 545
- End Page
- 548
- ISSN
- 1536-125X
1941-0085
- Abstract
- Single-walled carbon nanotubes (SWNTs) are introduced as a chemical sensor for the detection of sulfur dioxide (SO2) molecules. For a single bundle of SWNTs, current-voltage (I-V) curves were measured for a series of different temperatures under adsorption Of SO2 molecules. The I-V characteristics for a "MAT"-type thin film SWNTs, with respect to the amount Of SO2 adsorbed, were measured at room temperature and compared directly with O-2 adsorption. The change in current upon the adsorption Of SO2 is distinctly higher than that of O-2, and is also reversible for adsorption and successive evacuation. Thus, the results strongly suggested that a thin film of SWNTs can be used as a chemical sensor in the nanometer scale devices.
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Related Researcher
- Yi, Whi kun
- COLLEGE OF NATURAL SCIENCES (DEPARTMENT OF CHEMISTRY)