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Carbon nanotubes based flexible temperature sensors

KH. S. KARIMOV1,2, F. A. KHALID1, M. TARIQ SAEED CHANI1,* , A. MATEEN1, M. ASIF HUSSAIN1, A. MAQBOOL1

Affiliation

  1. GIK Institute of Engineering Sciences and Technology, Topi 23640, District Swabi, Pakistan
  2. Physical Technical Institute of Academy of Sciences, Rudaki Ave. 33, Dushanbe, 734025, Tajikistan

Abstract

This paper presents the design, fabrication and investigation of carbon nanotubes (CNTs) based flexible Al/CNT/Al temperature sensor. The sensor has been fabricated by the deposition of CNTs on the adhesive elastic polymer tape and packing it in the elastic casing. The diameter of multiwall nanotubes (MWNTs) was in the range of 10-30 nm. The nominal thickness of the CNTs layers in the samples was ~ 300-430 μm. The inter-electrodes distance (length) and width of the surface-type samples were in the range of 4-6 mm and 3-4 mm respectively. The investigations showed that DC resistance of the sensor decreases in average by 1.4 times as the temperature increases from 20 °C to 70 °C. The resistance-temperature relationship shows wide range sensitivity, and the simulation is in good agreement with the experimental results..

Keywords

Carbon nanotubes (CNTs), Nanopowder, Nanoparticles, Temperature sensor, Resistance.

Citation

KH. S. KARIMOV, F. A. KHALID, M. TARIQ SAEED CHANI, A. MATEEN, M. ASIF HUSSAIN, A. MAQBOOL, Carbon nanotubes based flexible temperature sensors, Optoelectronics and Advanced Materials - Rapid Communications, 6, 1-2, January-February 2012, pp.194-196 (2012).

Submitted at: June 14, 2011

Accepted at: Feb. 20, 2012