Pristine carbon nanotubes based resistive temperature sensor

Md Bayazeed Alam*, Sudhir Kumar Saini, Daya Shankar Sharma, Pankaj B. Agarwal

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


A good sensor must be highly sensitive, faster in response, of low cost cum easily producible, and highly reliable. Incorporation of nano-dimensional particles/ wires makes conventional sensors more effective in terms of fulfilling the above requirements. For example, Carbon Nanotubes (CNTs) are promising sensing element because of its large aspect ratio, unique electronic and thermal properties. In addition to their use for widely reported chemical sensing, it has also been explored for temperature sensing. This paper presents the fabrication of CNTs based temperature sensor, prepared on silicon substrate using low cost spray coating method, which is reliable and reproducible method to prepare uniform CNTs thin films on any substrate. Besides this, simple and inexpensive method of preparation of dispersion of single walled CNTs (SWNTs) in 1,2 dichlorobenzene by using probe type ultrasonicator for debundling the CNTs for improving sensor response were used. The electrical contacts over the dispersed SWNTs were taken using silver paste electrodes. Fabricated sensors clearly show immediate change in resistance as a response to change in temperature of SWNTs. The measured sensitivity (change in resistance with temperature) of the sensor was found ∼ 0.29%/°C in the 25°C to 60°C temperature range.

Original languageEnglish
Title of host publication2nd International Conference on Emerging Technologies
Subtitle of host publicationMicro to Nano 2015, ETMN 2015: Contributory Papers Presented in 2nd International Conference on Emerging Technologies: Micro to Nano 2015
EditorsNiti Nipun Sharma, Ford Lumban Gaol, Jamil Akhtar
PublisherAmerican Institute of Physics
ISBN (Electronic)9780735413719
Publication statusPublished - 13 Apr 2016
Externally publishedYes
Event2nd International Conference on Emerging Technologies: Micro to Nano 2015, ETMN 2015 - Jaipur, Rajasthan, India
Duration: 24 Oct 201525 Oct 2015

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference2nd International Conference on Emerging Technologies: Micro to Nano 2015, ETMN 2015
CityJaipur, Rajasthan


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