Au/PDMS Composite Film for High-Sensitivity Stretchable Strain Sensors

Stretchable strain sensors play significant application in human activity capturing, health monitoring and soft robotics. To obtain reliable information, a high-sensitivity strain sensor should be designed. Herein, (3-mercaptopropyl)trimethoxysilane is used as a “bridge molecule” to bond gold naofilm with polydimethylsiloxane, forming a stable and flexible composite film. This film shows a high sensitivity (average gauge factor: 183.2) in stretchable strain sensors.