Abstract
AbstractAlthough ionic hydrogels have been developed recently for innovative wearable electronics, they necessitate high humidity to diffuse ions in water and fast self‐healing, which negatively impacts their performance and stability in ambient conditions (e.g., dry environments). In this study, a series of p‐ and n‐type polymeric ionic gels (PIGs) with different ratios of ionic side chains are synthesized to allow only single‐type ions to pass through them. The results demonstrate that the repeatedly stretchable PIGs are transparent, thermally robust up to 125°C, and self‐healing. Among the series of PIGs, p‐ and n‐type PIGs with 75% ion moieties (P75 and N75) exhibit the optimum ionic conductivity (σi) (4.1 × 10−4 and 2.7 × 10−4 S cm−1) and ionic Seebeck coefficients (Si) (5.84, and ‐4.18 mV K−1) under ambient conditions (25°C and relative humidity (RH) of 30%), resulting in ZTi values of 1.87 × 10−3 and 1.18 × 10−3. Moreover, the σi and Si of PIGs are almost consistent under extremely low RH 10%. Accordingly, P(([EMIM+][SPA])0.75‐r‐MA0.25) (P75) and P(([APTA][TFSI−])0.75‐r‐MA0.25) (N75) are used to achieve stretchable ionic thermoelectrics (iTEs) with stable operability under ambient conditions (RH of 30%), satisfying all of the requirements. The iTEs with five pairs of p/n couples exhibit a thermovoltage of up to ∼0.8 V.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.