Thermoelectric porous laser-induced graphene-based strain-temperature decoupling and self-powered sensing

Despite rapid developments of wearable self-powered sensors, it is still elusive to decouple the simultaneously applied multiple input signals. Herein, we report the design and demonstration of stretchable thermoelectric porous graphene foam-based materials via facile laser scribing for self-powered decoupled strain and temperature sensing. The resulting sensor can accurately detect temperature with a resolution of 0.5°C and strain with a gauge factor of 1401.5. The design of the nanocomposites also explores the synergistic effect between the porous graphene and thermoelectric components to greatly enhance the Seebeck coefficient by almost four times (from 9.703 to 37.33 μV/°C). Combined with the…

• NS
  National Science Foundation

  Awards: 2243979, 2319139, 2309323, R21EB030140
• FF
  Foundation for the National Institutes of Health

  Award: R21EB030140
• NN
  National Natural Science Foundation of China

  Award: 52475591
• CP
  China Postdoctoral Science Foundation

  Award: 2024T170651
• NS
  Natural Science Foundation of Hebei Province

  Award: H2023202904
• NS
  Natural Science Foundation of Tianjin City

  Award: 22JCZDJC00640
• NI
  National Institutes of Health

  Award: R21EB030140