A Stretchable Polymer Conductor Through the Mutual Plasticization Effect.

Intrinsically stretchable conductors play key roles in the dynamic interfacing of electronic devices with soft human tissues. However, it is difficult to simultaneously achieve high electrical conductivity and mechanical stretchability. Here, we prepared highly stretchable and conductive thin film electrodes by combining PEDOT:PSS and a mutually plasticized polymer dopant. Notably, harsh acid treatment for conductivity enhancement was avoided, and good solvent tolerance and high optical transparency were realized, all of which are essential to device fabrication. We further developed a transparent electrochromic display that can bear stretching up to 80% strain, demonstrating its promising application in next-generation optoelectronics. This article is protected by copyright. All rights reserved.