CUED Publications database

Ink-jet printing of carbon nanotube thin film transistors

Beecher, P and Servati, P and Rozhin, A and Colli, A and Scardaci, V and Pisana, S and Hasan, T and Flewitt, AJ and Robertson, J and Hsieh, GW and Li, FM and Nathan, A and Ferrari, AC and Milne, WI (2007) Ink-jet printing of carbon nanotube thin film transistors. Journal of Applied Physics, 102. ISSN 0021-8979

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Ink-jet printing is an important process for placing active electronics on plastic substrates. We demonstrate ink-jet printing as a viable method for large area fabrication of carbon nanotube (CNT) thin film transistors (TFTs). We investigate different routes for producing stable CNT solutions ("inks"). These consist of dispersion methods for CNT debundling and the use of different solvents, such as N -methyl-2-pyrrolidone. The resulting printable inks are dispensed by ink-jet onto electrode bearing silicon substrates. The source to drain electrode gap is bridged by percolating networks of CNTs. Despite the presence of metallic CNTs, our devices exhibit field effect behavior, with effective mobility of ∼0.07 cm2 /V s and ON/OFF current ratio of up to 100. This result demonstrates the feasibility of ink-jet printing of nanostructured materials for TFT manufacture. © 2007 American Institute of Physics.

Item Type: Article
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:07
Last Modified: 18 Feb 2021 17:27
DOI: 10.1063/1.2770835