articleNano LettersJul 7, 2015Closed access

Highly Sensitive and Stretchable Multidimensional Strain Sensor with Prestrained Anisotropic Metal Nanowire Percolation Networks

KKKyun Kyu KimSHSukjoon HongHMHyun Min ChoJLJinhwan LeeYDYoung Duk Suh

Seoul National University · Stanford University

PubMed
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Abstract

To overcome the limitation of the conventional single axis-strain sensor, we demonstrate a multidimensional strain sensor composed of two layers of prestrained silver nanowire percolation network with decoupled and polarized electrical response in principal and perpendicular directional strain. The information on strain vector is successfully measured up to 35% maximum strain with large gauge factor (>20). The potential of the proposed sensor as a versatile wearable device has been further confirmed.

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Topics & keywords

Topics
Keywords
  • Gauge factor
  • Materials science
  • Percolation (cognitive psychology)
  • Strain (injury)
  • Nanowire
  • Anisotropy
  • Strain gauge
  • Capacitive sensing
UN Sustainable Development Goals
  • Affordable and clean energy
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