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Structural control of charge storage capacity to achieve 100% doping in vapor phase-polymerized PEDOT/tosylate

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dc.contributor.authorRehmen, J.
dc.contributor.authorZuber, K.
dc.contributor.authorModarresi, M.
dc.contributor.authorKim, D.
dc.contributor.authorCharrault, E.
dc.contributor.authorJannasch, P.
dc.contributor.authorZozoulenko, I.
dc.contributor.authorEvans, D.
dc.contributor.authorKarlsson, C.
dc.date.issued2019
dc.descriptionData source: Supporting information, https://pubs.acs.org/doi/10.1021/acsomega.9b02710
dc.description.abstractVapor phase polymerization (VPP) is used to fabricate a series of tosylate-doped poly(3,4-ethylenedioxythiophene) (PEDOT) electrodes on carbon paper. The series of VPP PEDOT/tosylate coatings has varying levels of crystallinity and electrical conductivity because of the use (or not) of nonionic triblock copolymers in the oxidant solution during synthesis. As a result, the impact of the structure on charge storage capacity is investigated using tetra-n-butylammonium hexafluorophosphate (0.1 M in acetonitrile). The ability to insert anions, and hence store charge, of the VPP PEDOT/tosylate is inversely related to its electrical conductivity. In the case of no nonionic triblock copolymer employed, the VPP PEDOT/tosylate achieves electrochemical doping levels of 1.0 charge per monomer or greater (≥100% doping level). Such high doping levels are demonstrated to be plausible by molecular dynamics simulations and density functional theory calculations. Experiments show that this high doping level is attainable when the PEDOT structure is weakly crystalline with (relatively) large crystallite domains.
dc.identifier.citationACS Omega, 2019; 4(26):21818-21826
dc.identifier.doi10.1021/acsomega.9b02710
dc.identifier.issn2470-1343
dc.identifier.issn2470-1343
dc.identifier.orcidZuber, K. [0000-0003-0579-1983]
dc.identifier.orcidEvans, D. [0000-0002-1525-2249]
dc.identifier.urihttps://hdl.handle.net/11541.2/140973
dc.language.isoen
dc.publisherAmerican Chemical Society (ACS)
dc.relation.fundingARC FT160100300
dc.relation.fundingAustralian Government
dc.relation.fundingSwedish Energy Agency 42894-1
dc.rightsCopyright 2019 American Chemical Society. This is an open access article published under a Creative Commons Non-Commercial NoDerivative Works (CC-BY-NC-ND) Attribution License, which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes. (https://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html)
dc.source.urihttps://doi.org/10.1021/acsomega.9b02710
dc.subjectKeywords
dc.titleStructural control of charge storage capacity to achieve 100% doping in vapor phase-polymerized PEDOT/tosylate
dc.typeJournal article
pubs.publication-statusPublished
ror.fileinfo12192628890001831 13192638230001831 9916354206001831.pdf
ror.mmsid9916354206001831

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