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

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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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The article was received on 22 Jun 2011, accepted on 06 Sep 2011 and first published on 11 Oct 2011

Article type: Paper
DOI: 10.1039/C1SM06174G
Soft Matter, 2011,7, 10642-10650
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    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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