Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.orgel.2012.05.039
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dc.titleHighly conductive PEDOT:PSS films prepared through a treatment with geminal diols or amphiphilic fluoro compounds
dc.contributor.authorXia, Y.
dc.contributor.authorOuyang, J.
dc.date.accessioned2014-10-07T09:50:19Z
dc.date.available2014-10-07T09:50:19Z
dc.date.issued2012-10
dc.identifier.citationXia, Y., Ouyang, J. (2012-10). Highly conductive PEDOT:PSS films prepared through a treatment with geminal diols or amphiphilic fluoro compounds. Organic Electronics: physics, materials, applications 13 (10) : 1785-1792. ScholarBank@NUS Repository. https://doi.org/10.1016/j.orgel.2012.05.039
dc.identifier.issn15661199
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/86406
dc.description.abstractPoly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) films with high conductivity can have important application as the transparent electrode of optoelectronic devices. In this paper, we report the significant conductivity enhancement of PEDOT:PSS through a treatment with germinal diols which have two hydroxyl groups connected to one carbon atom or amphiphilic fluoro compounds which have hydrophobic fluorocarbon groups and hydrophilic hydroxyl or carboxylic groups. Several compounds, including hexafluoroacetone, cyclohexanehexone, formaldehyde, acetaldehyde, and perfluorobenzophenone, which could convert into geminal diols, were used to treat PEDOT:PSS films. The conductivity enhancements are generally consistent with the equilibrium constants for the conversion of these compounds into geminal diols. PEDOT:PSS films were also treated with several amphiphilic fluoro compounds. The conductivity was significantly enhanced when PEDOT:PSS films were treated with hexafluoroisopropanol, trifluoroacetic acid and heptafluorobutyric acid, while it hardly changed when they were treated with 2,2,2-trifluoroethanol. Conductivities of more than 1000 S cm -1 were observed on the treated PEDOT:PSS films. The mechanism for the conductivity enhancement of PEDOT:PSS through the treatment with geminal diols or amphiphilic fluoro compounds is attributed to the phase segregation of PSSH from PEDOT:PSS and conformational change of the PEDOT chains as the results of the compounds-induced reduction in the Coulombic attraction between the positively charged PEDOT and negatively charged PSS chains. © 2012 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.orgel.2012.05.039
dc.sourceScopus
dc.subjectAmphiphilic compound
dc.subjectConductivity enhancement
dc.subjectGeminal diol
dc.subjectInsulator-to-metal transition
dc.subjectPEDOT:PSS
dc.typeArticle
dc.contributor.departmentMATERIALS SCIENCE AND ENGINEERING
dc.description.doi10.1016/j.orgel.2012.05.039
dc.description.sourcetitleOrganic Electronics: physics, materials, applications
dc.description.volume13
dc.description.issue10
dc.description.page1785-1792
dc.description.codenOERLA
dc.identifier.isiut000309591200004
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