Journal
NANO LETTERS
Volume 15, Issue 8, Pages 5240-5247Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b01505
Keywords
multiaxis strain sensor; nanowire percolation network; stretchable electronics; anisotropic resistance change
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Funding
- National Research Foundation of Korea (NRF) Global Frontier R&D Program on Center for Multiscale Energy System - Ministry of Science, ICT Future [2012-0008779, 2012-054172]
- Seoul National University, Institute of Advanced Machinery and Design (SNU-IAMD)
- R&D Convergence Program
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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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