Highly sensitive strain sensor using silver nanowire/poly(3,4‐ethylenedioxythiophene): Polystyrene sulfonate coated natural rubber

• DOI: 10.1002/pls2.10054
• Publication Date: 2021-06-28T11:56:29Z
• Authors: Kittiphong Thana; Rawat Jaisutti; Nattasamon Petchsang
• Keywords: Polystyrene sulfonate; Resistive touchscreen; Strain (injury)

Abstract Stretchable strain sensors have attracted much attention for health monitoring systems, human‐machine interfaces, and robotics. However, there is still a challenge to develop with excellent mechanical stretchability high strain‐sensing region as well cost‐effective fabrication process. Herein, highly sensitive, reliable low‐cost are developed using resistive transduction of poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) silver nanowire (Ag NW). Natural rubber was used stretchable substrate material, gold leaf electrodes placed between PEDOT:PSS Ag NW. The electrical resistance this novel sensor shows an average value 74.72 ± 14.65 Ω large sensing range up 50% sensitivity 418. response does not deteriorate after 750 stretching‐releasing cycles the exhibits stability storage in air more than 53 days. Concerning finger joint movement, wearable demonstrates stable output signal distinguishes under different bending stretching. These advantages make it potential applications electronic devices promising development healthcare management.