Highly Sensitive, Stretchable, and Robust Strain Sensor Based on Crack Propagation and Opening.

ABSTRACT: Soft and stretchable strain sensors have been attracting significant attention. However, the trade-off between the sensitivity (gauge factor) and the sensing range has been a major challenge. In this work, we report a soft stretchable resistive strain sensor with an unusual combination of high sensitivity, large sensing range, and high robustness. The sensor is made of a silver nanowire network embedded below the surface of an elastomeric matrix (e.g., poly(dimethylsiloxane)). Periodic mechanical cuts are applied to the top surface of the sensor, changing the current flow from uniformly across the sensor to along the conducting path defined by the open cracks. Both experiment and finite element analysis are conducted to study the effect of the slit depth, slit length, and pitch between the

SUBMITTER: Wu S 

PROVIDER: S-EPMC10403976 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature