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Morphology and conductivity of PEDOT/PSS films studied by scanning-tunneling microscopy
Eindhoven University of Technology, Netherlands.
Linköping University, Department of Physics, Chemistry and Biology, Chemical and Optical Sensor Systems. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-7104-7127
Eindhoven University of Technology, Netherlands.
Eindhoven University of Technology, Netherlands.
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2004 (English)In: Chemical Physics Letters, ISSN 0009-2614, E-ISSN 1873-4448, Vol. 394, no 4-6, 339-343 p.Article in journal (Refereed) Published
Abstract [en]

The influence of sorbitol on the nanometer-scale morphology of poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS) is investigated by scanning-tunneling microscopy. In all investigated films relatively well-conducting PEDOT particles are observed. with typical sizes of 10-50 nm, that are embedded in a less conductive PSS matrix. Addition of sorbitol to the casting solution is found to enhance the clustering of the PEDOT particles into larger domains. The observed morphologies are correlated to the macroscopic conductivity of the films, using an intuitive model. In addition, the morphology in the top layer of the films was found to differ substantially from the bulk morphology.

Place, publisher, year, edition, pages
Elsevier , 2004. Vol. 394, no 4-6, 339-343 p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:liu:diva-118210DOI: 10.1016/j.cplett.2004.07.035ISI: 000223463500022OAI: oai:DiVA.org:liu-118210DiVA: diva2:813344
Available from: 2015-05-22 Created: 2015-05-22 Last updated: 2015-06-01

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Kemerink, Martijn
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Chemical and Optical Sensor SystemsThe Institute of Technology
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