Fabrication and electrochemical properties of three-dimensional (3D) porous graphitic and graphenelike electrodes obtained by low-cost direct laser writing methods

dc.contributor.authorBurke, Micheal
dc.contributor.authorLarrigy, Cathal
dc.contributor.authorVaughan, Eoghan
dc.contributor.authorPaterakis, George
dc.contributor.authorSygellou, Labrini
dc.contributor.authorQuinn, Aidan J.
dc.contributor.authorHerzog, Grégoire
dc.contributor.authorGaliotis, Costas
dc.contributor.authorIacopino, Daniela
dc.contributor.funderHorizon 2020en
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderEuropean Regional Development Funden
dc.date.accessioned2020-07-15T08:37:51Z
dc.date.available2020-07-15T08:37:51Z
dc.date.issued2020-01-10
dc.date.updated2020-07-15T08:20:31Z
dc.description.abstractThe development of three-dimensional (3D) porous graphitic structures is of great interest for electrochemical sensing applications as they can support fast charge transfer and mass transport through their extended, large surface area networks. In this work, we present the facile fabrication of conductive and porous graphitic electrodes by direct laser writing techniques. Irradiation of commercial polyimide sheets (Kapton tape) was performed using a low-cost laser engraving machine with visible excitation wavelength (405 nm) at low power (500 mW), leading to formation of 3D laser-induced graphene (LIG) structures. Systematic correlation between applied laser dwell time per pixel (“dwell time”) and morphological/structural properties of fabricated electrodes showed that conductive and highly 3D porous structures with spectral signatures of nanocrystalline graphitic carbon materials were obtained at laser dwell times between 20 and 110 ms/pix, with graphenelike carbon produced at 50 ms/pix dwell time, with comparable properties to LIG obtained with high cost CO2 lasers. Electrochemical characterization with inner and outer sphere mediators showed fast electron transfer rates, comparable to previously reported 2D/3D graphene-based materials and other graphitic carbon electrodes. This work opens the way to the facile fabrication of low-cost, disposable electrochemical sensor platforms for decentralized assays.en
dc.description.sponsorshipScience Foundation Ireland ((SFI) under grant number SFI 16/RC/3918 (CONFIRM), 13/RC/2077 (CONNECT) and SFI TIDA 5118, cofunded by the European Regional Development Fund)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationBurke, M., Larrigy, C., Vaughan, E., Paterakis, G., Sygellou, L., Quinn, A. J., Herzog, G., Galiotis, C. and Iacopino, D. (2020) 'Fabrication and Electrochemical Properties of Three-Dimensional (3D) Porous Graphitic and Graphenelike Electrodes Obtained by Low-Cost Direct Laser Writing Methods', ACS Omega, 5, pp. 1540-1548. doi: 10.1021/acsomega.9b03418en
dc.identifier.doi10.1021/acsomega.9b03418en
dc.identifier.eissn2470-1343
dc.identifier.endpage1548en
dc.identifier.journaltitleACS Omegaen
dc.identifier.startpage1540en
dc.identifier.urihttps://hdl.handle.net/10468/10258
dc.identifier.volume5en
dc.language.isoenen
dc.publisherAmerican Chemical Societyen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::IA/814496/EU/Active & intelligent PAckaging materials and display cases as a tool for preventive conservation of Cultural Heritage./APACHEen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/13/RC/2077/IE/CONNECT: The Centre for Future Networks & Communications/en
dc.relation.urihttps://pubs.acs.org/doi/10.1021/acsomega.9b03418
dc.rights© 2020 American Chemical Society.This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes.en
dc.rights.urihttps://pubs.acs.org/page/policy/authorchoice_termsofuse.htmlen
dc.subjectLaser induced grapheneen
dc.subjectElectrochemical sensorsen
dc.subjectGraphitic electrodesen
dc.subjectDirect laser writingen
dc.subjectCarbonen
dc.subjectElectrodesen
dc.subjectChemical structureen
dc.subjectPolyimidesen
dc.subjectLasersen
dc.titleFabrication and electrochemical properties of three-dimensional (3D) porous graphitic and graphenelike electrodes obtained by low-cost direct laser writing methodsen
dc.typeArticle (peer-reviewed)en
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