Improvement of the Electrical, Mechanical and Adhesive Properties of PEDOT:PSS

Poly(3,4-ethylenedioxythiophene):Polystyrene sulfonate (PEDOT:PSS) is a popular mixed ion-electron conductor, and it can have important application many areas. However, its electrical. mechanical and adhesive properties must be greatly improved for the practical application in some areas. Here, I will present some of our methods to signifiantly improve the electrical, mechanical and adhesive properties. We also demonstrate their application in wearable/flexible electronics.<br/><br/>References. (1) H. He, R. Chen, S. Yue, S. Yu, J. Wei, and J. Ouyang, Salt-induced ductilization and strain-insensitive resistance of an intrinsically conducting polymer, Science Advances, 2022, 8, abq8160; (2) J. Cao, X. Yang, J. Rao, A. Mitriashkin, X. Fan, R. Chen, H. Cheng, X. Wang, J. Goh, H. L. Leo, and J. Ouyang, A Stretchable and Self-adhesive PEDOT:PSS Blend with High Sweat Tolerance as Conformal Biopotential Dry Electrodes, ACS Applied Materials & Interfaces, 2022, 14, 39159; (3) L. Zhang, S. K. Kirthika, H. He, C. J. Cai, X. He, H. Gao, S. Yue, C. Li, R. C.-S. Seet, H. Ren, J. Ouyang, Fully Organic, Skin-compliant, Self-adhesive and Stretchable Dry Electrodes for Long-term Motion-robust Epidermal Biopotential Monitoring, Nature Communications, 2020, 11, 4683.