Patterning polythiophene films using electrochemical over-oxidation
2005 (English)In: Smart materials and structures (Print), ISSN 0964-1726, Vol. 14, N21-N25 p.Article in journal (Refereed) Published
Over-oxidative degradation of polythiophenes, which breaks the conjugation and destroys the electronic conductivity of the polymer, is well documented as a liability in these materials. We use this 'weakness', via controlled electrochemical over-oxidation, in a novel subtractive patterning technique compatible with high-speed reel-to-reel printing technology. We demonstrate the use of electrochemical over-oxidation to pattern PEDOT:PSS films via an x–y plotter, silk-screen and high-resolution photolithographic techniques, resulting in patterning down to a resolution of 2 µm and a conduction contrast between unpatterned and patterned areas of up to 108.
Place, publisher, year, edition, pages
IOP Elctronic Journals , 2005. Vol. 14, N21-N25 p.
IdentifiersURN: urn:nbn:se:liu:diva-14024DOI: 10.1088/0964-1726/14/4/N03OAI: oai:DiVA.org:liu-14024DiVA: diva2:22481