TITLE

Transistor gating by polar molecular monolayers

AUTHOR(S)
Shaya, O.; Einati, H.; Fishelson, N.; Shacham-Diamand, Y.; Rosenwaks, Y.
PUB. DATE
August 2010
SOURCE
Applied Physics Letters;8/2/2010, Vol. 97 Issue 5, p053501
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In order to determine the role of polar monolayers in molecular-gated transistors we combine Kelvin probe force microscopy and current-voltage measurements of hybrid silicon-on-insulator metal-oxide-semiconductor field-effect transistors. Layers having alternating net-dipole direction were self-assembled on the top dielectric layer of the transistors. Nonzero field-effect was observed only with an amine-terminated monolayer and is attributed to the protonation of the amine groups. No correlation between the field-effect and the net-dipole of the molecular layers was found; this effect is discussed and explained.
ACCESSION #
52802631

 

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