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Metalloprotein-based field-effect transistor: a prototype

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7 Author(s)

A key challenge in nanoelectronics is the use of a bottom-up approach to fabricate nanodevices from molecular building blocks. Here, a field-effect transistor based on the metallo-protein Azurin is demonstrated. Azurin is attractive because of its natural redox properties (provided by the Cu redox site) and self-assembly capability (which allows the chemisorption on suitable surfaces). Our prototype structure consists of two planar nanoelectrodes connected by a protein self-assembled monolayer and a back electrode as gate. The transfer characteristic exhibits a pronounced resonance and transport is explained in terms of equilibrium between the two possible oxidation states of the copper site.

Published in:

Nanotechnology, 2004. 4th IEEE Conference on

Date of Conference:

16-19 Aug. 2004