Ag-thiolate interactions to enable an ultrasensitive and stretchable MXene strain sensor with high temporospatial resolution.

ABSTRACT: High-sensitivity strain sensing elements with a wide strain range, fast response, high stability, and small sensing areas are desirable for constructing strain sensor arrays with high temporospatial resolution. However, current strain sensors rely on crack-based conductive materials having an inherent tradeoff between their sensing area and performance. Here, we present a molecular-level crack modulation strategy in which we use layer-by-layer assembly to introduce strong, dynamic, and reversible coordination bonds in an MXene and silver nanowire-matrixed conductive film. We use this approach to fabricate a crack-based stretchable strain sensor with a very small sensing area (0.25 mm²). It also exhibits an ultrawide working strain range (0.001-37%), high sensitivity (gauge facto

SUBMITTER: Liu Y 

PROVIDER: S-EPMC11200319 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature