dc.contributor.author | Coleman, Jonathan | en |
dc.contributor.author | Moebius, Matthias | en |
dc.date.accessioned | 2021-05-19T08:00:23Z | |
dc.date.available | 2021-05-19T08:00:23Z | |
dc.date.issued | 2021 | en |
dc.date.submitted | 2021 | en |
dc.identifier.citation | Daniel P. O Driscoll, Sean McMahon, James Garcia, Sonia Biccai, Cian Gabbett, Adam G. Kelly, Sebastian Barwich, Matthias Moebius, Conor S. Boland and Jonathan N. Coleman, Printable G-putty for Frequency and Rate Independent, High Performance Strain Sensors, 2021 | en |
dc.identifier.other | Y | en |
dc.description | PUBLISHED | en |
dc.description.abstract | While nanocomposite electromechanical sensors are expected to display reasonable conductivity and high sensitivity, little consideration is given to eliminating hysteresis and strain rate/frequency dependence from their response. For example, while G-putty, a composite of graphene and polysiloxane, has very high electromechanical sensitivity, its extreme viscoelasticity renders it completely unsuitable for real sensors due to hysteretic and rate-/frequency-dependent effects. Here it is shown that G-putty can be converted to an ink and printed into patterned thin films on elastic substrates. A partial graphene-polymer phase segregation during printing increases the thin-film conductivity by ×106 compared to bulk, while the mechanical effects of the substrate largely suppress hysteresis and completely remove strain rate and frequency dependence. This allows the fabrication of practical, high-gauge-factor, wearable sensors for pulse measurements as well as patterned sensors for low-signal vibration sensing. | en |
dc.language.iso | en | en |
dc.rights | Y | en |
dc.subject | Percolation | en |
dc.subject | Piezoresistance | en |
dc.subject | Pressure sensing | en |
dc.title | Printable G-putty for Frequency and Rate Independent, High Performance Strain Sensors | en |
dc.type | Journal Article | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/colemaj | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/mobiusm | en |
dc.identifier.rssinternalid | 230376 | en |
dc.identifier.doi | https://doi.org/10.1002/smll.202006542 | |
dc.rights.ecaccessrights | openAccess | |
dc.identifier.orcid_id | 0000-0001-9659-9721 | en |
dc.identifier.uri | http://hdl.handle.net/2262/96365 | |