Controlling transistor threshold voltages using molecular dipoles

Details Controlling transistor threshold voltages using molecular dipoles Controlling transistor threshold voltages using molecular dipoles

2008-07-22

arxiv.org/abs/0807.3378v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 5 figures, 1 table

Scientific paper

We develop a theoretical model for how organic molecules can control the electronic and transport properties of an underlying transistor channel to whose surface they are chemically bonded. The influence arises from a combination of long-ranged dipolar electrostatics due to the molecular head-groups, as well as short-ranged charge transfer and interfacial dipole driven by equilibrium band-alignment between the molecular backbone and the reconstructed semiconductor surface atoms.

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