DNA double helices for single molecule electronics

Details DNA double helices for single molecule electronics DNA double helices for single molecule electronics

2007-03-09

arxiv.org/abs/cond-mat/0703247v1

PRL 98, 096801 (2007)

Physics

Condensed Matter

Materials Science

4 pages, 4 figure

Scientific paper

10.1103/PhysRevLett.98.096801

The combination of self-assembly and electronic properties as well as its true nanoscale dimensions make DNA a promising candidate for a building block of single molecule electronics. We argue that the intrinsic double helix conformation of the DNA strands provides a possibility to drive the electric current through the DNA by the perpendicular electric (gating) field. The transistor effect in the poly(G)-poly(C) synthetic DNA is demonstrated within a simple model approach. We put forward experimental setups to observe the predicted effect and discuss possible device applications of DNA. In particular, we propose a design of the single molecule analog of the Esaki diode.

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