Flexible temperature and flow sensor from laser-induced graphene

Marco Marengo, Giovanni Marinaro, Jürgen Kosel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations

Abstract

Herein we present a flexible temperature sensor and a flow speed sensor based on laser-induced graphene. The main benefits arise from peculiar electrical, thermal and mechanical performances of the material thus obtained, along with a cheap and simple fabrication process. The temperature sensor is a negative temperature coefficient thermistor with non-linear response typical of semi-metals. The thermistor shows a 4% decrease of the resistance in a temperature range of 20–60 °C. The flow sensor exploits the piezoresistive properties of laser-induced graphene and can be used both in gaseous and liquid media thanks to a protective polydimethylsiloxane coating. Main characteristics are ultra-fast response and versatility in design offered by the laser technology.
Original languageEnglish (US)
Title of host publication2017 IEEE SENSORS
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-3
Number of pages3
ISBN (Print)9781509010127
DOIs
StatePublished - Jan 2 2018

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