Assessment of Graphene for Heat Flux Sensor

Amit Kumar

Abstract: Graphene is synthesized on a lab scale by a reduction approach and used to create a graphene-based heat flux sensor. An oil bath approach is used for the calibration of the sensor to find its sensitivity and temperature coefficient of resistance. The graphene sensor proved useful in measuring thermal changes as it performed well in detecting both temperature and heat flow. Graphene measured temperature and heat flow with effectiveness. Resistance and temperature show a strong linear connection in the graphene sensor. The temperature coefficient of resistance is found to be 0.0013/ ?C. Fabricated graphene sensor is sensitive to 0.715 ?/ ?C. The sensor is appropriate for use in heat flux detecting applications since it demonstrated consistent resistance variations under heat load.

Keywords: Heat flux sensor, Graphene, RTD, TCR, Sensitivity