title: A flexible and highly pressure-sensitive graphene-polyurethane sponge based on fractured microstructure design.
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.
authors.affiliation: 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.
authors.forename: Hong-Bin
authors.initials: HB
authors.lastname: Yao
authors.forename: Jin
authors.initials: J
authors.lastname: Ge
authors.forename: Chang-Feng
authors.initials: CF
authors.lastname: Wang
authors.forename: Xu
authors.initials: X
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Hu
authors.forename: Zhi-Jun
authors.initials: ZJ
authors.lastname: Zheng
authors.forename: Yong
authors.initials: Y
authors.lastname: Ni
authors.forename: Shu-Hong
authors.initials: SH
authors.lastname: Yu
mesh_terms: D006108:Graphite / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry; D011140:Polyurethanes / Q000737:chemistry*; D011312:Pressure; D013499:Surface Properties; D014173:Transistors, Electronic
chemical_list: D010087:Oxides; D011140:Polyurethanes; D006108:Graphite
keywords: fractured microstructure design; graphene nanosheets; piezoresistive sensor; polyurethane sponge; pressure sensitivity