Screen-printed, flexible, and eco-friendly thermoelectric touch sensors based on ethyl cellulose and graphite flakes inks
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2023 |
| Outros Autores: | , , , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
| Texto Completo: | http://hdl.handle.net/10362/154945 |
Resumo: | Funding Information: This work was financed by national funds from FCT—Fundação para a Ciência e a Tecnologia, I P, in the scope of the projects LA/P/0037/2020 of the As-sociate Laboratory Institute of Nanostructures, Nanomodelling and Nanofabrication—i3N. The authors would like to thank Miguel Alexandre for some explanatory illustrations. Publisher Copyright: © 2023 The Author(s). Published by IOP Publishing Ltd. |
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7160 |
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Screen-printed, flexible, and eco-friendly thermoelectric touch sensors based on ethyl cellulose and graphite flakes inksethyl celluloseflexible substratesgraphitescreen-printingthermoelectrictouch sensorsElectronic, Optical and Magnetic MaterialsElectrical and Electronic EngineeringFunding Information: This work was financed by national funds from FCT—Fundação para a Ciência e a Tecnologia, I P, in the scope of the projects LA/P/0037/2020 of the As-sociate Laboratory Institute of Nanostructures, Nanomodelling and Nanofabrication—i3N. The authors would like to thank Miguel Alexandre for some explanatory illustrations. Publisher Copyright: © 2023 The Author(s). Published by IOP Publishing Ltd.Despite the undoubtable interest in energy conversion, thermoelectric (TE) materials can be approached from a temperature-sensitive perspective, as they can detect small thermal stimuli, such as a human touch or contact with cold/hot objects. This feature offers possibilities for different applications one of them being the integration with scalable and cost-effective, biocompatible, flexible, and lightweight thermal sensing solutions, exploring the combination of sustainable Seebeck coefficient-holding materials with printing techniques and flexible substrates. In this work, ethyl cellulose and graphite flakes inks were optimized to be used as functional material for flexible thermal touch sensors produced by screen-printing. Graphite concentrations of 10, 20 and 30 wt% were tested, with 1, 2 and 3 printed layers on four different substrates—office paper, sticker label paper, standard cotton, and organic cotton. The conjugation of these variables was assessed in terms of printability, sheet resistance and TE response. The best electrical-TE output combination is achieved by printing two layers of the ink with 20 wt% of graphite on an office paper substrate. Subsequently, thermal touch sensors with up to 48 TE elements were produced to increase the output voltage response (>4.5 mV) promoted by a gloved finger touch. Fast and repeatable touch recognition were obtained in optimized devices with a signal-to-noise ratio up to 340 and rise times bellow 0.5 s. The results evidence that the screen-printed graphite-based inks are highly suitable for flexible TE sensing applications.DCM - Departamento de Ciência dos MateriaisCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)UNINOVA-Instituto de Desenvolvimento de Novas TecnologiasRUNFigueira, J.Bonito, R. M.Carvalho, J. T.Vieira, E. M. F.Gaspar, C.Loureiro, JoanaCorreia, J. H.Fortunato, E.Martins, R.Pereira, L.2023-07-06T22:18:39Z2023-06-012023-06-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article13application/pdfhttp://hdl.handle.net/10362/154945eng2058-8585PURE: 65375525https://doi.org/10.1088/2058-8585/acc114info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:37:28Zoai:run.unl.pt:10362/154945Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:55:52.091379Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
| dc.title.none.fl_str_mv |
Screen-printed, flexible, and eco-friendly thermoelectric touch sensors based on ethyl cellulose and graphite flakes inks |
| title |
Screen-printed, flexible, and eco-friendly thermoelectric touch sensors based on ethyl cellulose and graphite flakes inks |
| spellingShingle |
Screen-printed, flexible, and eco-friendly thermoelectric touch sensors based on ethyl cellulose and graphite flakes inks Figueira, J. ethyl cellulose flexible substrates graphite screen-printing thermoelectric touch sensors Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
| title_short |
Screen-printed, flexible, and eco-friendly thermoelectric touch sensors based on ethyl cellulose and graphite flakes inks |
| title_full |
Screen-printed, flexible, and eco-friendly thermoelectric touch sensors based on ethyl cellulose and graphite flakes inks |
| title_fullStr |
Screen-printed, flexible, and eco-friendly thermoelectric touch sensors based on ethyl cellulose and graphite flakes inks |
| title_full_unstemmed |
Screen-printed, flexible, and eco-friendly thermoelectric touch sensors based on ethyl cellulose and graphite flakes inks |
| title_sort |
Screen-printed, flexible, and eco-friendly thermoelectric touch sensors based on ethyl cellulose and graphite flakes inks |
| author |
Figueira, J. |
| author_facet |
Figueira, J. Bonito, R. M. Carvalho, J. T. Vieira, E. M. F. Gaspar, C. Loureiro, Joana Correia, J. H. Fortunato, E. Martins, R. Pereira, L. |
| author_role |
author |
| author2 |
Bonito, R. M. Carvalho, J. T. Vieira, E. M. F. Gaspar, C. Loureiro, Joana Correia, J. H. Fortunato, E. Martins, R. Pereira, L. |
| author2_role |
author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
DCM - Departamento de Ciência dos Materiais CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N) UNINOVA-Instituto de Desenvolvimento de Novas Tecnologias RUN |
| dc.contributor.author.fl_str_mv |
Figueira, J. Bonito, R. M. Carvalho, J. T. Vieira, E. M. F. Gaspar, C. Loureiro, Joana Correia, J. H. Fortunato, E. Martins, R. Pereira, L. |
| dc.subject.por.fl_str_mv |
ethyl cellulose flexible substrates graphite screen-printing thermoelectric touch sensors Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
| topic |
ethyl cellulose flexible substrates graphite screen-printing thermoelectric touch sensors Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
| description |
Funding Information: This work was financed by national funds from FCT—Fundação para a Ciência e a Tecnologia, I P, in the scope of the projects LA/P/0037/2020 of the As-sociate Laboratory Institute of Nanostructures, Nanomodelling and Nanofabrication—i3N. The authors would like to thank Miguel Alexandre for some explanatory illustrations. Publisher Copyright: © 2023 The Author(s). Published by IOP Publishing Ltd. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023-07-06T22:18:39Z 2023-06-01 2023-06-01T00:00:00Z |
| dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10362/154945 |
| url |
http://hdl.handle.net/10362/154945 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
2058-8585 PURE: 65375525 https://doi.org/10.1088/2058-8585/acc114 |
| dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
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13 application/pdf |
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reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
| institution |
RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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