Laser controlled molecular switches and transistors

Details Laser controlled molecular switches and transistors Laser controlled molecular switches and transistors

2002-05-22

arxiv.org/abs/physics/0205060v1

Chem. Phys. Lett. 368, 282 (2003)

Physics

Chemical Physics

11 pages, 4 figures, elsart.cls included

Scientific paper

10.1016/S0009-2614(02)01860-2

We investigate the possibility of optical current control through single molecules which are weakly coupled to leads. A master equation approach for the transport through a molecule is combined with a Floquet theory for the time-dependent molecule. This yields an efficient numerical approach to the evaluation of the current through time-dependent nano-structures in the presence of a finite external voltage. We propose tunable optical current switching in two- and three-terminal molecular electronic devices driven by properly adjusted laser fields, i.e. a novel class of molecular transistors.

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