Non-percolating nanotube networks for thin film transistors: A pathway to channel length reduction

This study outlines a method to increase the transconductance of thin film transistors (TFTs) by assembling non-percolating random arrays of carbon nanotubes. It represents an effective, simple tool to substantially reduce the transistor channel length, thus increase transconductance, without lessen...

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Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part N, Journal of nanoengineering and nanosystems Journal of nanoengineering and nanosystems, 2007-09, Vol.221 (3), p.87-91
Main Authors: Tassi, N G, Rabolt, J F, Blanchet, G B
Format: Article
Language:English
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Summary:This study outlines a method to increase the transconductance of thin film transistors (TFTs) by assembling non-percolating random arrays of carbon nanotubes. It represents an effective, simple tool to substantially reduce the transistor channel length, thus increase transconductance, without lessening the on/off ratio. When non-percolating arrays of carbon nanotubes are linked via a semiconducting overlay, the majority of current paths between source and drain follow the highly conducting nanotubes with short, switchable semiconducting links completing the circuit. This field-induced percolating network allows for high transconductance with relatively large source—drain distance. Thus, transistors can be manufactured inexpensively by commercially available techniques using a variety of available semiconductors.
ISSN:1740-3499
2041-3092
DOI:10.1243/17403499JNN114