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      A flexible and highly pressure-sensitive graphene-polyurethane sponge based on fractured microstructure design.

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          Abstract

          A fractured microstructure design: A new type of piezoresistive sensor with ultra-high-pressure sensitivity (0.26 kPa(-1) ) in low pressure range (<2 kPa) and minimum detectable pressure of 9 Pa has been fabricated using a fractured microstructure design in a graphene-nanosheet-wrapped polyurethane (PU) sponge. This low-cost and easily scalable graphene-wrapped PU sponge pressure sensor has potential application in high-spatial-resolution, artificial skin without complex nanostructure design.

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          Author and article information

          Journal
          Adv. Mater. Weinheim
          Advanced materials (Deerfield Beach, Fla.)
          Wiley-Blackwell
          1521-4095
          0935-9648
          Dec 10 2013
          : 25
          : 46
          Affiliations
          [1 ] Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, PR China.
          Article
          10.1002/adma.201303041
          24027108
          dd33d78a-4ccf-4081-aeb9-e47cfc149191
          History

          fractured microstructure design,graphene nanosheets,piezoresistive sensor,polyurethane sponge,pressure sensitivity

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