PROJECT TITLE :
Highly Sensitive and Transparent Strain Sensor Based on Thin Elastomer Film
Strain sensors of high sensitivity and wonderful transparency were fabricated based mostly on a thin ( $sim twenty~mu textm$ ) poly(dimethylsiloxane) (PDMS) elastomer film integrating a conductive composite of silver nanowires and neutral-pH poly (3,4-ethylenedioxythiophene): poly(styrenesulfonate). Such a thin PDMS film was peeled off from a glass substrate, which surface was changed with a self-assembled monolayer to scale back the desired tensile stress within the elastomer film for the peeling-off process. The skinny film sensor presented a sensitivity more than twenty times higher than that of strain sensors primarily based on a thick (80zero $mu textm$ ) PDMS film, and also a high optical transparency of nearly 80%, which are the desired features for developing unperceivable and invisible sensors in wearable applications. Moreover, the sensor showed excellent durability and quick response/recovery speed. An application for real-time monitoring of human neck posture was finally demonstrated.
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