Semi-metallic, strong and stretchable wet-spun conjugated polymer microfibers

Handle URI:
http://hdl.handle.net/10754/558876
Title:
Semi-metallic, strong and stretchable wet-spun conjugated polymer microfibers
Authors:
Zhou, Jian ( 0000-0003-0144-5901 ) ; Li, Erqiang ( 0000-0002-5003-0756 ) ; Li, Ruipeng; Xu, Xuezhu; Ventura, Isaac Aguilar; Moussawi, Ali ( 0000-0002-5978-7990 ) ; Anjum, Dalaver H.; Hedhili, Mohamed N. ( 0000-0002-3624-036X ) ; Smilgies, Detlef-M.; Lubineau, Gilles ( 0000-0002-7370-6093 ) ; Thoroddsen, Sigurdur T. ( 0000-0001-6997-4311 )
Abstract:
A dramatic improvement in electrical conductivity is necessary to make conductive polymer fibers viable candidates in applications such as flexible electrodes, conductive textiles, and fast-response sensors and actuators. In this study, high-performance poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS) conjugated polymer microfibers were fabricated via wet-spinning followed by hot-drawing. Due to the combined effects of the vertical hot-drawing process and doping/de-doping the microfibers with ethylene glycol (EG), we achieved a record electrical conductivity of 2804 S cm−1. This is, to the best of our knowledge, a six-fold improvement over the best previously reported value for PEDOT/PSS fibers (467 S cm−1) and a two-fold improvement over the best values for conductive polymer films treated by EG de-doping (1418 S cm−1). Moreover, we found that these highly conductive fibers experience a semiconductor–metal transition at 313 K. They also have superior mechanical properties with a Young's modulus up to 8.3 GPa, a tensile strength reaching 409.8 MPa and a large elongation before failure (21%). The most conductive fiber also demonstrates an extraordinary electrical performance during stretching/unstretching: the conductivity increased by 25% before the fiber rupture point with a maximum strain up to 21%. Simple fabrication of the semi-metallic, strong and stretchable wet-spun PEDOT/PSS microfibers described here could make them available for conductive smart electronics.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; COHMAS Laboratory; High-Speed Fluids Imaging Laboratory; Advanced Nanofabrication, Imaging and Characterization Core Lab
Citation:
Semi-metallic, strong and stretchable wet-spun conjugated polymer microfibers 2015, 3 (11):2528 J. Mater. Chem. C
Journal:
J. Mater. Chem. C
Issue Date:
21-Jan-2015
DOI:
10.1039/C4TC02354D
Type:
Article
ISSN:
2050-7526; 2050-7534
Additional Links:
http://xlink.rsc.org/?DOI=C4TC02354D
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorZhou, Jianen
dc.contributor.authorLi, Erqiangen
dc.contributor.authorLi, Ruipengen
dc.contributor.authorXu, Xuezhuen
dc.contributor.authorVentura, Isaac Aguilaren
dc.contributor.authorMoussawi, Alien
dc.contributor.authorAnjum, Dalaver H.en
dc.contributor.authorHedhili, Mohamed N.en
dc.contributor.authorSmilgies, Detlef-M.en
dc.contributor.authorLubineau, Gillesen
dc.contributor.authorThoroddsen, Sigurdur T.en
dc.date.accessioned2015-07-05T12:32:52Zen
dc.date.available2015-07-05T12:32:52Zen
dc.date.issued2015-01-21en
dc.identifier.citationSemi-metallic, strong and stretchable wet-spun conjugated polymer microfibers 2015, 3 (11):2528 J. Mater. Chem. Cen
dc.identifier.issn2050-7526en
dc.identifier.issn2050-7534en
dc.identifier.doi10.1039/C4TC02354Den
dc.identifier.urihttp://hdl.handle.net/10754/558876en
dc.description.abstractA dramatic improvement in electrical conductivity is necessary to make conductive polymer fibers viable candidates in applications such as flexible electrodes, conductive textiles, and fast-response sensors and actuators. In this study, high-performance poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS) conjugated polymer microfibers were fabricated via wet-spinning followed by hot-drawing. Due to the combined effects of the vertical hot-drawing process and doping/de-doping the microfibers with ethylene glycol (EG), we achieved a record electrical conductivity of 2804 S cm−1. This is, to the best of our knowledge, a six-fold improvement over the best previously reported value for PEDOT/PSS fibers (467 S cm−1) and a two-fold improvement over the best values for conductive polymer films treated by EG de-doping (1418 S cm−1). Moreover, we found that these highly conductive fibers experience a semiconductor–metal transition at 313 K. They also have superior mechanical properties with a Young's modulus up to 8.3 GPa, a tensile strength reaching 409.8 MPa and a large elongation before failure (21%). The most conductive fiber also demonstrates an extraordinary electrical performance during stretching/unstretching: the conductivity increased by 25% before the fiber rupture point with a maximum strain up to 21%. Simple fabrication of the semi-metallic, strong and stretchable wet-spun PEDOT/PSS microfibers described here could make them available for conductive smart electronics.en
dc.relation.urlhttp://xlink.rsc.org/?DOI=C4TC02354Den
dc.rightsArchived with thanks to J. Mater. Chem. Cen
dc.titleSemi-metallic, strong and stretchable wet-spun conjugated polymer microfibersen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentCOHMAS Laboratoryen
dc.contributor.departmentHigh-Speed Fluids Imaging Laboratoryen
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.identifier.journalJ. Mater. Chem. Cen
dc.eprint.versionPost-printen
dc.contributor.institutionCornell High Energy Synchrotron Source, Wilson Laboratory, Cornell University, Ithaca, USAen
dc.contributor.institutionNorth Dakota State University, Department of Mechanical Engineering, Fargo, USAen
kaust.authorZhou, Jianen
kaust.authorLi, Erqiangen
kaust.authorMoussawi, Alien
kaust.authorHedhili, Mohamed N.en
kaust.authorLubineau, Gillesen
kaust.authorThoroddsen, Sigurdur T.en
kaust.authorVentura, Isaac Aguilaren
kaust.authorAnjum, Dalaver H.en
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