Direct measurement of electrical transport through DNA molecules
Article Abstract:
It has been possible to make measurements of electrical transport through individual 10.4-nm-long, double-stranded poly(G)-poly(C) DNA molecules linked to two metal nanoelectrodes. There is uncertainty about the nature of the contact resistance between the DNA and the metal electrodes. However, it is probable that there is no good metallic contact and that the contacts can be represented by tunnelling barriers. It is likely that most of the observed gap comes from the offset between the Fermi level of the electrode and the molecular energy bands of the DNA molecule.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
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Carbon nanotube intramolecular junctions
Article Abstract:
Electrical transport measurements on single-wall carbon nanotubes (SWCTs) with intramolecular junctions indicate that a metal-semiconductor junction acts like a rectifying diode with nonlinear transport characteristics that are very asymmetric in relation to bias polarity. End-to-end tunneling between two Luttinger liquids appears to explain the main physics of the observed data. It is important to take account of screening and electron interactions when designing and modelling molecular devices.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
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Room-temperature transistor based on a single carbon nanotube
Article Abstract:
It is relatively easy to fabricate a single carbon nanotube field-effect transistor (TUBEFET) device. It may eventually be possible to integrate multiple devices into a circuit through the use of molecular self-assembly techniques. The TUBEFET device functions at room temperature, thus giving it significant potential for practical applications. The gain of the TUBEFET device can be estimated by assessing the voltage over the device at a specific current.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
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