Facile Inkjet-Printing Self-Aligned Electrodes for Organic Thin-Film Transistor Arrays with Small and Uniform Channel Length

We demonstrated a facile method for fabrication of source and drain electrodes with very reproducible narrow channel length without any intermediate processing steps. Organoamine-stabilized silver nanoparticles ink enables in situ formation of a hydrophobic boundary around the first printed electrod...

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Bibliographic Details
Published in:ACS applied materials & interfaces 2010-08, Vol.2 (8), p.2189-2192
Main Authors: Doggart, Jason, Wu, Yiliang, Liu, Ping, Zhu, Shiping
Format: Article
Language:English
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Summary:We demonstrated a facile method for fabrication of source and drain electrodes with very reproducible narrow channel length without any intermediate processing steps. Organoamine-stabilized silver nanoparticles ink enables in situ formation of a hydrophobic boundary around the first printed electrodes, which repels subsequently deposited ink to a consistent distance. Because of this self-alignment nature, small printing errors could be automatically corrected, allowing for large defect-free source drain arrays to be printed with a very narrow distribution of channel length. Furthermore, electrodes printed with this method were used to fabricate OTFT array, showing high yield, high mobility, and on/off ratio.
ISSN:1944-8244
1944-8252
DOI:10.1021/am100466r