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Issue 22, 2011
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Ultra-thin conductive free-standing PEDOT/PSS nanofilms

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Abstract

Free-standing conductive ultra-thin films based on poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS) are realized. A fabrication process based on a modified Supporting Layer technique is proposed that provides for the easy production of conductive nanofilms having a very large surface area with typical thickness of tens of nanometres. The proposed free-standing nanofilms can be manipulated, folded and unfolded in water many times without suffering from cracks, disaggregation or from loss of conductive properties. After collecting them onto rigid or soft substrates, they retain their functionality. Structural and functional properties of the nanofilms are described by means of their thickness, topography, conductivity and Young's modulus. Strong dependences of these properties on residual water, post-deposition treatments and environmental moisture are clearly evidenced. Possible applications are foreseen in the field of sensing and actuation, as well as in the biomedical field, e.g. as smart substrates for cell culturing and stimulation.

Graphical abstract: Ultra-thin conductive free-standing PEDOT/PSS nanofilms

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Supplementary files

Article information


Submitted
22 Jun 2011
Accepted
06 Sep 2011
First published
11 Oct 2011

This article is Open Access

Soft Matter, 2011,7, 10642-10650
Article type
Paper

Ultra-thin conductive free-standing PEDOT/PSS nanofilms

F. Greco, A. Zucca, S. Taccola, A. Menciassi, T. Fujie, H. Haniuda, S. Takeoka, P. Dario and V. Mattoli, Soft Matter, 2011, 7, 10642
DOI: 10.1039/C1SM06174G

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