TITLE

Self-assembled molecular monolayers as ultrathin gate dielectric in carbon nanotube transistors

AUTHOR(S)
Robert, Gaël; Derycke, Vincent; Goffman, Marcelo F.; Lenfant, Stéphane; Vuillaume, Dominique; Bourgoin, Jean-Philippe
PUB. DATE
October 2008
SOURCE
Applied Physics Letters;10/6/2008, Vol. 93 Issue 14, p143117
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We demonstrate the use of a self-assembled monolayer of octadecanethiol on gold as thin gate dielectric for a single-walled carbon nanotube field-effect transistor. P-type transistors display very steep subthreshold slopes, greatly reduced hysteresis, and band-to-band tunneling. The suppression of the gate efficiency for n-type transistors emphasizes the key role of the electrical dipole of the molecular layer in controlling the switching. Combining the versatility of organic dielectrics with the exceptional electronic and mechanical properties of carbon nanotubes opens interesting ways toward the realization of fully organic nanoscale transistors.
ACCESSION #
34850439

 

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