“…Temperature sensors are classified in various ways depending on principles and materials, such as resistance temperature detectors (RTDs), infrared temperature sensors, and thermocouples. Materials such as metal, metal oxide, and ceramic, which have limited characteristics including inflexibility, heavyweight, and fragility, have been mainly used to make temperature sensors [1][2][3]. Recently, carbon-based materials, like carbon black, graphene, and carbon nanotube, and various flexible substrates, like polydimethylsiloxane (PDMS), textile, and polyimide (PI), have been studied to get better mechanical and electrical properties [4][5][6][7][8][9].…”