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dc.contributor.authorTeo, Mei Ying
dc.contributor.authorRaviChandran, Narrendar
dc.contributor.authorKim, Nara
dc.contributor.authorKee, Seyoung
dc.contributor.authorStuart, Logan
dc.contributor.authorAw, Kean C
dc.contributor.authorStringer, Jonathan
dc.date.accessioned2019-10-14T08:51:22Z
dc.date.available2019-10-14T08:51:22Z
dc.date.issued2019-09-27
dc.identifier.citationTeo, M. Y., RaviChandran, N., Kim, N., Kee, S., Stuart, L., Aw, K. C., & Stringer, J. (2019). Direct Patterning of Highly Conductive PEDOT:PSS/Ionic Liquid Hydrogel via Microreactive Inkjet Printing. ACS Applied Materials & Interfaces. doi:10.1021/acsami.9b12069
dc.identifier.doi10.1021/acsami.9b12069
dc.identifier.urihttp://hdl.handle.net/10754/658615
dc.description.abstractThe gelation of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) has gained popularity for its potential applications in three dimensions, while possessing tissue-like mechanical properties, high conductivity, and biocompatibility. However, the fabrication of arbitrary structures, especially via inkjet printing, is challenging because of the inherent gel formation. Here, microreactive inkjet printing (MRIJP) is utilized to pattern various 2D and 3D structures of PEDOT:PSS/IL hydrogel by in-air coalescence of PEDOT:PSS and ionic liquid (IL). By controlling the in-air position and Marangoni-driven encapsulation, single droplets of the PEDOT:PSS/IL hydrogel as small as a diameter of ≈260 μm are fabricated within ≈600 μs. Notably, this MRIJP-based PEDOT:PSS/IL has potential for freeform patterning while maintaining identical performance to those fabricated by the conventional spin-coating method. Through controlled deposition achieved via MRIJP, PEDOT:PSS/IL can be transformed into different 3D structures without the need for molding, potentially leading to substantial progress in next-generation bioelectronics devices.
dc.description.sponsorshipThe authors thank the Microfabrication Laboratory, Polymer Electronics Research Centre (PERC), and Centre for Advanced Composite Materials (CACM) at the University of Auckland for their assistance with the measurements. The authors also acknowledge the help from Dr. Pooja Yadav for the help with ESR measurements
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acsami.9b12069
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS applied materials & interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsami.9b12069.
dc.subjectconductive hydrogel
dc.subjectinkjet printing
dc.subjectPEDOT:PSS
dc.subjectconducting polymer
dc.subjectionic liquids
dc.titleDirect Patterning of Highly Conductive PEDOT:PSS/Ionic Liquid Hydrogel via Microreactive Inkjet Printing.
dc.typeArticle
dc.contributor.departmentKAUST Solar Center (KSC)
dc.identifier.journalACS applied materials & interfaces
dc.rights.embargodate2020-09-20
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Mechanical Engineering , The University of Auckland , Symonds Street , Auckland 1010 , New Zealand.
dc.contributor.institutionDepartment of Science and Technology , Linköping University , Norrköping 601 74 , Sweden.
kaust.personKee, Seyoung


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