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Deposition of PEDOT/SWCNT Composites by Inkjet Printing

Published online by Cambridge University Press:  01 February 2011

Peter David Angelo  and
Ramin R. Farnood
Peter David Angelo
Affiliation:
peter.angelo@utoronto.ca, University of Toronto, Chemical Engineering and Applied Chemistry, Toronto, Canada
Ramin R. Farnood
Affiliation:
ramin.farnood@utoronto.ca, University of Toronto, Chemical Engineering and Applied Chemistry, Toronto, Canada
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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 kΩ/on cellulose acetate, in ink containing 6 w/w% of an aqueous SWCNT solution (approximately 0.04 w/w% SWCNTs).

Keywords

ink-jet printingnanoscaleoptoelectronic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1260: Symposium T – Photovoltaics and Optoelectronics from Nanoparticles , 2010 , 1260-T07-02
Copyright
Copyright © Materials Research Society 2010

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