Design guidelines of Laser Reduced Graphene Oxide Conformal Thermistor for IoT applications

Abstract

This work presents a complete temperature sensing solution based on a conformal laser-reduced graphene-oxide temperature transducer acting as thermistor. The process to implement the temperature-sensitive element is described in detail; from the raw material to the optimum laser scribing conditions used to define the resistive component. The final transducer is fabricated on a flexible plastic substrate and can be attached to any surface as a conformal patch. To provide a full demonstrator of the potential of this technology, the thermistor is integrated in an IoT sensing platform with wireless data transmission capability using a reconfigurable ultra-low power System-on-Chip.