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

Hong-Bin Yao; Jin Ge; Chang-Feng Wang; Xu Wang; Wei Hu; Zhi-Jun Zheng; Yong Ni; Shu-Hong Yu

doi:10.1002/adma.201303041

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

Adv Mater. 2013 Dec 10;25(46):6692-8. doi: 10.1002/adma.201303041. Epub 2013 Sep 12.

Authors

Hong-Bin Yao¹, Jin Ge, Chang-Feng Wang, Xu Wang, Wei Hu, Zhi-Jun Zheng, Yong Ni, Shu-Hong Yu

Affiliation

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.

PMID: 24027108
DOI: 10.1002/adma.201303041

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.

Keywords: fractured microstructure design; graphene nanosheets; piezoresistive sensor; polyurethane sponge; pressure sensitivity.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Graphite / chemistry*
Nanostructures / chemistry*
Oxides / chemistry
Polyurethanes / chemistry*
Pressure
Surface Properties
Transistors, Electronic

Substances

Oxides
Polyurethanes
Graphite