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Flexible, scalable, and efficient thermoelectric touch detector based on PDMS and graphite flakes

2021-12Artigo científico Acesso aberto
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dc.contributor.authorFigueira, Joana
dc.contributor.authorLoureiro, Joana
dc.contributor.authorVieira, Eliana
dc.contributor.authorFortunato, Elvira
dc.contributor.authorMartins, Rodrigo
dc.contributor.authorPereira, Luís
dc.contributor.institutionDCM - Departamento de Ciência dos Materiais
dc.contributor.institutionCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)
dc.contributor.institutionUNINOVA-Instituto de Desenvolvimento de Novas Tecnologias
dc.contributor.pblIOP Publishing
dc.date.accessioned2022-02-14T23:29:40Z
dc.date.available2022-02-14T23:29:40Z
dc.date.issued2021-12
dc.descriptionSFRH/BD/121679/2016 UIDB/04436/2020 UIDP/04436/2020 ERC-StG-2014, GA 640598 H2020-WIDESPREAD-2020-5, GA 952169), GA 692373
dc.description.abstractThis paper presents freestanding thermoelectric touch detectors consisting of graphite conductive flakes into a polydimethylsiloxane matrix. An optimal concentration of graphite flakes (45 wt%) lead to robust and homogeneous detectors that exhibited signal-noise ratio values up to 170 with rise and falling times below 1 s and 7 s, respectively. The detectors performance was stable over continuous operation and did not reveal significant degradation while bended under different curvature radii (45, 25 and 15 mm) and consecutive bending cycles. Moreover, the twist of the thermal gradient direction between the electrodes of the detector enables a Yes or No response which opens new usage possibilities. Therefore, this work provides an efficient way to develop robust, low-cost, and scalable thermal detectors with potential use in wearable technologies.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent1645411
dc.identifier.doi10.1088/2058-8585/ac45de
dc.identifier.issn2058-8585
dc.identifier.otherPURE: 36678045
dc.identifier.otherPURE UUID: 42851a5e-5c9c-478a-9e63-32530a64c17b
dc.identifier.otherScopus: 85123515158
dc.identifier.otherWOS: 000740036900001
dc.identifier.otherORCID: /0000-0002-4202-7047/work/108206513
dc.identifier.urihttp://hdl.handle.net/10362/132905
dc.identifier.urlhttps://www.scopus.com/pages/publications/85123515158
dc.language.isoeng
dc.peerreviewedyes
dc.relationinfo:eu-repo/grantAgreement/FCT/5876/147333/PT
dc.subjectflexible technologies
dc.subjectlow-cost fabrication
dc.subjectno substrates
dc.subjectPDMS/graphite flakes
dc.subjectscalable manufacturing
dc.subjectthermoelectric touch sensors
dc.subjectElectronic, Optical and Magnetic Materials
dc.subjectElectrical and Electronic Engineering
dc.titleFlexible, scalable, and efficient thermoelectric touch detector based on PDMS and graphite flakesen
dc.typejournal article
degois.publication.issue4
degois.publication.titleFlexible and Printed Electronics
degois.publication.volume6
dspace.entity.typePublication
oaire.awardNumberUID/CTM/50025/2013
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FCTM%2F50025%2F2013/PT
oaire.fundingStream5876
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
relation.isProjectOfPublicationd94394ca-c419-4430-9491-83be2361e7a8
relation.isProjectOfPublication.latestForDiscoveryd94394ca-c419-4430-9491-83be2361e7a8

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