In this paper we propose the use of a microwave technique to measure the conductivity of poly(3,4- ethylenedioxythiophene) (PEDOT) films. The PEDOT layers were prepared by electropolymerization from aqueous solutions using both poly(sodium 4-styrene sulphonate) (NaPSS) and sodium dodecyl sulphate (NaDS) acting as monomer solubilizer and dopant for the polymer. The conductive properties of a series of samples produced under different synthesis conditions and characterized by different structures have been investigated by microwave measurements in the frequency range from 40MHz to 40GHz by using a Corbino disc geometry. Such technique allows to estimate the mean conductivity of the polymer samples overcoming the limitations of the measuring configurations typically imposed by the conventional d.c. measurements. The morphology of PEDOT films and the structure of polymer chains were studied by scanning electron microscopy (SEM) and Raman spectroscopy, respectively. The correlated morphological, structural and microwave analysis enabled us to evidence several factors that affect the macroscopic scale conductivity of the polymer sample films and to identify the conditions for preparation of PEDOT films with functional properties relevant to technological applications.

Tamburri, E., Sarti, S., Orlanducci, S., Terranova Persichelli, M.l., Rossi, M. (2011). Study of PEDOT conductive polymer films by admittance measurements. MATERIALS CHEMISTRY AND PHYSICS, 125(3), 397-404 [doi:10.1016/j.matchemphys.2010.10.042].

Study of PEDOT conductive polymer films by admittance measurements

Tamburri, E;Orlanducci, S;Terranova Persichelli, M L;
2011-01-01

Abstract

In this paper we propose the use of a microwave technique to measure the conductivity of poly(3,4- ethylenedioxythiophene) (PEDOT) films. The PEDOT layers were prepared by electropolymerization from aqueous solutions using both poly(sodium 4-styrene sulphonate) (NaPSS) and sodium dodecyl sulphate (NaDS) acting as monomer solubilizer and dopant for the polymer. The conductive properties of a series of samples produced under different synthesis conditions and characterized by different structures have been investigated by microwave measurements in the frequency range from 40MHz to 40GHz by using a Corbino disc geometry. Such technique allows to estimate the mean conductivity of the polymer samples overcoming the limitations of the measuring configurations typically imposed by the conventional d.c. measurements. The morphology of PEDOT films and the structure of polymer chains were studied by scanning electron microscopy (SEM) and Raman spectroscopy, respectively. The correlated morphological, structural and microwave analysis enabled us to evidence several factors that affect the macroscopic scale conductivity of the polymer sample films and to identify the conditions for preparation of PEDOT films with functional properties relevant to technological applications.
2011
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore CHIM/03 - CHIMICA GENERALE E INORGANICA
English
Con Impact Factor ISI
microwave conductivity measurements;PEDOT; electropolymerization; Raman spectroscopy
https://www.sciencedirect.com/science/article/abs/pii/S0254058410008734?via=ihub
Tamburri, E., Sarti, S., Orlanducci, S., Terranova Persichelli, M.l., Rossi, M. (2011). Study of PEDOT conductive polymer films by admittance measurements. MATERIALS CHEMISTRY AND PHYSICS, 125(3), 397-404 [doi:10.1016/j.matchemphys.2010.10.042].
Tamburri, E; Sarti, S; Orlanducci, S; Terranova Persichelli, Ml; Rossi, M
Articolo su rivista
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/18197
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