Alkanethiol-based single-molecule transistors

Ma, Chun-Lan; Nghiem, Diu; Chen, Yu-Chang
December 2008
Applied Physics Letters;12/1/2008, Vol. 93 Issue 22, p222111
Academic Journal
We have investigated the transport properties of alkanethiol molecules in the two-terminal and three-terminal junctions by using first-principles approaches. We observe that states around the Fermi levels are introduced in the amino-substituted butanethiol junction. It leads to a sharp increase in the current, which is credited to the resonant tunneling. The current-voltage characteristics suggest that the amino-substituted butanethiol molecular junction may be a promising candidate for field-effect transistors.


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