Effect of an organic molecular coating on control over the conductance of carbon nanotube channel

Journal Article · Mon Dec 15 00:00:00 EST 2014 · Semiconductors

DOI:https://doi.org/10.1134/S106378261413003X· OSTI ID:22300389

Bobrinetskiy, I. I.; Emelianov, A. V.; Romashkin, A. V. ^[1]

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1. National Research University “Moscow Institute of Electronic Technology” (MIET) (Russian Federation)

It is shown that the coating of carbon nanotubes with molecules with a constant dipole moment changes the conductance of the tubes due to a variation in the structure of energy levels that participate in charge transport. The I–V characteristics of the investigated structures exhibit significant dependence of the channel conductance on the gate potential. The observed memory effect of conductance level can be explained by the rearrangement of polar groups and molecules as a whole in an electric field. The higher the dipole moment per unit length and the weaker the intermolecular interaction, the faster the rearrangement process is.

• OSTI ID: 22300389
• Journal Information: Semiconductors, Vol. 48, Issue 13; Other Information: Copyright (c) 2014 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7826
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
CARBON NANOTUBES
CONTROL
DIPOLE MOMENTS
ELECTRIC CONDUCTIVITY
ELECTRIC FIELDS
ENERGY LEVELS
INTERACTIONS