Issue 97, 2015
From the journal:

RSC Advances

Preparation and characterisation of transparent and flexible PEDOT:PSS/PANI electrodes by ink-jet printing and electropolymerisation

Annalisa Vacca,*a   Michele Mascia,a   Simone Rizzardini,a   Simona Corgiolu,a   Simonetta Palmas,a   Monia Demelas,b   Annalisa Bonfigliob  and  Pier Carlo Riccic  

* Corresponding authors

a Dipartimento di Ingegneria Meccanica Chimica e dei Materiali, Università degli Studi di Cagliari, Via Marengo 2, 09123 Cagliari, Italy
E-mail: annalisa.vacca@dimcm.unica.it
Tel: +39 070 675 50 59

b Dipartimento di Ingegneria Elettrica ed Elettronica, Università degli Studi di Cagliari, Via Marengo 3, 09123 Cagliari, Italy

c Dipartimento di Fisica, Università degli Studi di Cagliari, Complesso Universitario di Monserrato, S.P. Monserrato-Sestu Km 0.700, 09042 Monserrato (CA), Italy

Abstract

Novel flexible PEDOT:PSS/PANI bilayered thin-film electrodes were successfully prepared by ink-jet printing of PEDOT:PSS on a PEN substrate and subsequent electrochemical polymerisation of PANI. Scanning electron microscopy (SEM), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were used to systematically investigate the structure, morphology and electrochemical behaviour of the electrodes. The PEDOT:PSS/PANI bilayer nanofilms have been tested as pH sensors. As a comparison, either PEDOT:PSS or PANI electrodes have been tested for pH measurements. The results show that the sensitivity of the PEDOT:PSS/PANI bilayer film is higher than that of PEDOT:PSS and PANI electrodes, indicating a synergistic effect of the two polymers. A reversible near-Nerstian behaviour of the open circuit voltage with pH was found, with a slope of 58.9 mV pH−1 unit in a wide range of pH values from 2 to 14.

Graphical abstract: Preparation and characterisation of transparent and flexible PEDOT:PSS/PANI electrodes by ink-jet printing and electropolymerisation

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Article information

DOI
https://doi.org/10.1039/C5RA15295J
Article type
Paper
Submitted
31 Jul 2015
Accepted
15 Sep 2015
First published
15 Sep 2015
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2015,5, 79600-79606

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Preparation and characterisation of transparent and flexible PEDOT:PSS/PANI electrodes by ink-jet printing and electropolymerisation

A. Vacca, M. Mascia, S. Rizzardini, S. Corgiolu, S. Palmas, M. Demelas, A. Bonfiglio and P. C. Ricci, RSC Adv., 2015, 5, 79600 DOI: 10.1039/C5RA15295J

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