Ultra‐High Electrical Conductivity in Filler‐Free Polymeric Hydrogels Toward Thermoelectrics and Electromagnetic Interference Shielding

Abstract Conducting hydrogels have attracted much attention for the emerging field of hydrogel bioelectronics, especially poly(3,4‐ethylenedioxythiophene): poly(styrene sulfonate) (PEDOT:PSS) based hydrogels, because of their great biocompatibility and stability. However, the electrical conductivities of hydrogels are often lower than 1 S cm −1 which are not suitable for digital circuits or applications in bioelectronics. Introducing conductive inorganic fillers into the hydrogels can improve their electrical conductivities. However, it may lead to compromises in compliance, biocompatibility, deformability, biodegradability, etc. Herein, a series of highly conductive ionic liquid (IL) doped PEDOT:PSS hydrogels…

• NN
  National Natural Science Foundation of China

  Award: 51876151
• FR
  Fundamental Research Funds for the Central Universities