Solid state molecular rectifier based on self organized metalloproteins

Details Solid state molecular rectifier based on self organized metalloproteins Solid state molecular rectifier based on self organized metalloproteins

2002-07-29

arxiv.org/abs/cond-mat/0207675v1

Physics

Condensed Matter

Materials Science

13 pages including two figures. Accepted for publication in Advanced Materials

Scientific paper

Recently, great attention has been paid to the possibility of implementing hybrid electronic devices exploiting the self-assembling properties of single molecules. Impressive progress has been done in this field by using organic molecules and macromolecules. However, the use of biomolecules is of great interest because of their larger size (few nanometers) and of their intrinsic functional properties. Here, we show that electron-transfer proteins, such as the blue copper protein azurin (Az), can be used to fabricate biomolecular electronic devices exploiting their intrinsic redox properties, self assembly capability and surface charge distribution. The device implementation follows a bottom-up approach in which the self assembled protein layer interconnects nanoscale electrodes fabricated by electron beam lithography, and leads to efficient rectifying behavior at room temperature.

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