Sandwich-structured flexible PDMS@graphene multimodal sensors capable of strain and temperature monitoring with superlative temperature range and sensitivity

For the purpose of extending the flexible sensor applied for diverse applications, this study proposed a novel flexible and sandwich-structured polydimethylsiloxane (PDMS)@graphene sensor by the one-step solvent evaporation method. The prepared PDMS@graphene sensor exhibits resistivity dependence on both temperature and strain changes. For instance, the PDMS@graphene flexible sensor carried out a monitoring temperature range of-40 to 300 degrees C with the superlative thermal index and strain sensitivity of 12015.86 K and 2175.8, respectively. The monitoring resolution of the PDMS@graphene sensor achieved 0.5 degrees C and 0.0625% for the temperature and strain with excellent repeatability. Accordingly, the innovative flexible PDMS@graphene sensor presents broad application prospects for structural components, biomedicine equipment, smart wearable textiles, and safety monitoring.

Automated summary

This study presented a novel flexible and sandwich-structured polydimethylsiloxane (PDMS)@graphene sensor for diverse applications. The PDMS@graphene sensor exhibited resistivity dependence on temperature and strain changes, with a monitoring temperature range of -40 to 300 degrees C and a superlative thermal index of 12015.86 K. The sensor achieved a monitoring resolution of 0.5 degrees C for temperature and 0.0625% for strain, indicating its excellent repeatability. Thus, the innovative flexible PDMS@graphene sensor holds great potential in various fields such as structural components, biomedicine equipment, smart wearable textiles, and safety monitoring.