Photopatternable self-assembled monolayers as micron scale templates for polymer based field effect transistors

Avnon, Eran; Paz, Yaron; Tessler, Nir
January 2009
Applied Physics Letters;1/5/2009, Vol. 94 Issue 1, p013502
Academic Journal
We study the use of photopatternable self-assembled monolayers (SAMs) as a template for self-localizing patterns of conducting-polymer based transistors. To allow the use of standard SAMs, we studied and optimized the photocatalytic effect of TiO2, so that it can render the SAMs photopatternable by direct UV light imaging down to micron scale resolution. The resulting template produces high resolution patterns of conducting polymer without resorting to high resolution inkjet printing. This process is used to demonstrate 2 μm channel length organic field effect transistors.


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