Ultraelastic and High‐Conductivity Multiphase Conductor with Universally Autonomous Self‐Healing (Adv. Sci. 36/2022)

Abstract

Organic Conductors Achieving excellent electrical, mechanical, and self‐healing properties with soft conductor has been challenging so far. In article number 2205485 , Jarkko Tolvanen and co‐workers report a co‐continuous multiphase design strategy for self‐healable organic conductor‐elastomer blend that achieves a good overall performance. The cover displays structure of the heterogenous multiphase conductor with microdroplet morphology captured by optical microscopy.

Application of Multilayered Blend Films as Soft, Stretchable, Self‐Adhesive, and Self‐Healing Absorption‐Dominant EMI Shielding and Microwave Absorber

“…[ 38 ] On the other hand, the maximum achievable E of the films is dominated by the choice of electrically insulative supramolecular elastomer as shown by the experimental results and theoretical values derived on the basis of the equivalent Takayanagi model. [ 36 ]…”

“…The first step was to prepare the poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) to form PEDOT‐rich nanofibrils by coalescing the cores of the PEDOT:PSS microgel particles with the use of dimethyl sulfoxide (DMSO) at or above the 16 vol.% critical volume concentration. [ 36 ] This was done by directly mixing the aqueous PEDOT:PSS with the predefined amount of DMSO. The PEDOT‐rich nanofibrils can then be directly blended with the other elastomer components [ 36 ] by the use of amphiphilic surfactant, such as Triton TM X‐100.…”

“…[ 36 ] This was done by directly mixing the aqueous PEDOT:PSS with the predefined amount of DMSO. The PEDOT‐rich nanofibrils can then be directly blended with the other elastomer components [ 36 ] by the use of amphiphilic surfactant, such as Triton TM X‐100. The use of Triton TM X‐100 allows dispersion between hydrophobic and hydrophilic chain segments which then enables the formation of a homogenous mixture at the initial stage.…”

“…The use of Triton TM X‐100 allows dispersion between hydrophobic and hydrophilic chain segments which then enables the formation of a homogenous mixture at the initial stage. [ 36 ] The choice of the starting materials and synthesis method has been previously explained in our previous works. [ 36,38 ]…”

Soft and Stretchable Humidity‐Insensitive Thermoresistive Temperature Sensor with A Tensile Strain Modulated Sensitivity

“…The solution of PEDOT:PSS and with predetermined concentration of DMSO was prepared as previously reported. [ 76 ] Aqueous solution of 4.6 g of PH1000 was dispersed with 16 vol.% of DMSO. The solution was stirred at room temperature to remove the excessive water until the weight of the solution was decreased by ≈41%.…”