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Structured oligo(aniline) nanofilms via ionic self-assembly
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Dane, Thomas G., Cresswell, Philip T., Bikondoa, Oier, Newby, Gemma E., Arnold, Thomas, Faul, C. F. J. (Charles Frederick James) and Briscoe, Wuge H. (2012) Structured oligo(aniline) nanofilms via ionic self-assembly. Soft Matter, Vol.8 (No.10). pp. 2824-2832. doi:10.1039/c2sm06492h ISSN 1744-683X.
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Official URL: http://dx.doi.org/10.1039/C2SM06492H
Abstract
Conducting polymers have shown great potential for application in electronic devices. A major challenge in such applications is to control the supramolecular structures these materials form to optimise the functionality. In this work we probe the structure of oligo(aniline) thin films (of sub-μm thickness) drop cast on a silicon substrate using synchrotron surface diffraction. Self-assembly was induced through doping with an acid surfactant, bis(ethyl hexyl) phosphate (BEHP), resulting in the formation of well-ordered lamellae with the d-spacing ranging from 2.15 nm to 2.35 nm. The exact structural characteristics depended both on the oligomer chain length and film thickness, as well as the doping ratio. Complementary UV/Vis spectroscopy measurements confirm that such thin films retain their bulk electronic properties. Our results point to a simple and effective ionic self-assembly approach to prepare thin films with well-defined structures by tailoring parameters such as the oligomer molecular architecture, the nanofilm composition and the interfacial roughness.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | Aniline, Thin films, Conducting polymers | ||||
Journal or Publication Title: | Soft Matter | ||||
Publisher: | Royal Society of Chemistry | ||||
ISSN: | 1744-683X | ||||
Official Date: | 2012 | ||||
Dates: |
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Volume: | Vol.8 | ||||
Number: | No.10 | ||||
Page Range: | pp. 2824-2832 | ||||
DOI: | 10.1039/c2sm06492h | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Date of first compliant deposit: | 19 December 2015 | ||||
Date of first compliant Open Access: | 19 December 2015 | ||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC), European Research Council (ERC), University of Bristol | ||||
Grant number: | EP/H034862/1 (EPSRC) |
Data sourced from Thomson Reuters' Web of Knowledge
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