Neella, Nagarjuna and Nayak, M M and Rajanna, K (2017) Nanocomposite Films on Mylar for Temperature Sensing Applications. In: 61st DAE-Solid State Physics Symposium, DEC 26-30, 2016, KIIT Univ, Bhubaneswar, INDIA.
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Here in, we are reporting the fabrication of graphene oxide (GO) Platinum (Pt) nanocomposite films on Mylar substrate for temperature sensor application on the basis of negative temperature coefficient (NTC) resistive element. The nanocomposite was successfully prepared by the solution mixing of GO nanosheets and Pt metal nanoparticles in N-Methyl-2-Pyrrolidone (NMP) using ultra sonication process. It was found that, the as-formed nanocomposite shows the Pt nanoparticles were dispersed no homogeneously on the surface of the GO nanosheets. The as-synthesized GO nanosheets and nanocomposite were characterized by field emission scanning electron microscope (FE-SEM) and X-ray diffraction (XRD) for their surface analysis and structural properties respectively. `file sensing film formation is carried out onto the flexible Mylar membrane for the fabrication of temperature sensor using drop casting method. The thickness of the sensing film is around 50 mu m. As cab be observed that, the resistivity of nanocomposite sensing film decreased with the increase of temperature resulting in NTC behavior. The measured NTC and sensitivity of the sensor were found to be -4.26 x 10(-3) Omega/Omega/K and 1.5231 Omega/K respectively. Therefore, the synthesized graphene oxide-Platinum nanocomposite film is an attractive candidate for making temperature sensors. Since the output is linear with respect to temperature variation, the electronic readout circuitry will be simpler. However, the change of electrical resistance of nanocomposite films can also be used in sensing environmental parameters such as chemical, biological, moisture and mechanical for their gas, glucose, humidity and strain/pressure sensor applications respectively.
| Item Type: | Conference Proceedings |
|---|---|
| Series.: | AIP Conference Proceedings |
| Additional Information: | Copy right for this article belongs to the AMER INST PHYSICS, 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA |
| Department/Centre: | Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics |
| Date Deposited: | 11 Nov 2017 04:45 |
| Last Modified: | 11 Nov 2017 04:45 |
| URI: | http://eprints.iisc.ac.in/id/eprint/58234 |
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