NDLI: A carbon nanotube gas sensor fabricated by dielectrophoresis and its application for NH3 detection

Content Provider	IEEE Xplore Digital Library
Author	Renhui Wang Hongtao Li Min Pan Dajing Chen
Copyright Year	2009
Description	Author affiliation: Biosensor National Special Laboratory, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China (Renhui Wang; Hongtao Li; Min Pan; Dajing Chen)
Abstract	Multi-walled carbon nanotubes (MWNTs) were successfully manipulated by dielectrophoresis (DEP) to form electrical connection between interdigitated gold electrodes (IDEs) and were demonstrated to serve as gas sensor for NH3 detection. The MWNTs were suspended in ethanol and deposited on the IDEs under the effect of DEP. After the evaporation of ethanol, the MWNTs remained between the gaps of the IDEs. The electrical conductivity of the DEP-fabricated MWNTs sensor decreased when exposed to NH3 at room temperature. There is a good linear correlation between the decreasing amplitude of conductance and the NH3 concentration, and the detection limit of 10ppm NH3 could be achieved.
Starting Page	6046
Ending Page	6049
File Size	861002
Page Count	4
File Format	PDF
ISBN	9781424432967
ISSN	1557170X
DOI	10.1109/IEMBS.2009.5334531
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Carbon nanotubes Gas detectors Dielectrophoresis Electrodes Ethanol Biosensors Laboratories Biomedical engineering Fabrication Gold
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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