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Deposition of PEDOT/SWCNT Composites by Inkjet Printing

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Abstract

Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate), or PEDOT:PSS, a conductive polymer suspension, as well as carbon nanotubes (CNTs), were incorporated into a conductive ink suitable for use in a piezoelectric inkjet printer. Viscosity, surface tension, and particle size of the ink were controlled to achieve stable, high-resolution printing. Passage of the CNTs through the filtration and jetting steps involved in printing was evaluated using scanning transmission electron microscopy (STEM), UV-visible spectroscopy, and zeta-potential measurements of the filtered and printed inks. Only single-walled nanotubes (SWCNTs) passed through the jetting stage in significant amounts. Printed PEDOT/SWCNT sheet resistance was effectively minimized at ˜1 kO/on cellulose acetate, in ink containing 6 w/w% of an aqueous SWCNT solution (approximately 0.04 w/w% SWCNTs).

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Authors and Affiliations

  1. Department of Chemical Engineering & Applied Chemistry, University of Toronto, Pulp & Paper Centre 200 College Street, M5G3A1, Toronto, Canada

    Peter D. Angelo & Ramin R. Farnood

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  1. Peter D. Angelo
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  2. Ramin R. Farnood
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Angelo, P.D., Farnood, R.R. Deposition of PEDOT/SWCNT Composites by Inkjet Printing. MRS Online Proceedings Library 1260, 702 (2010). https://doi.org/10.1557/PROC-1260-T07-02

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  • DOI: https://doi.org/10.1557/PROC-1260-T07-02

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