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Current-voltage cha...
Current-voltage characteristics of single molecular junction : Dimensionality of metal contacts
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Wang, C. K. (författare)
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- Luo, Yi (författare)
- KTH,Bioteknologi
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(creator_code:org_t)
- AIP Publishing, 2003
- 2003
- Engelska.
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Ingår i: Journal of Chemical Physics. - : AIP Publishing. - 0021-9606 .- 1089-7690. ; 119:9, s. 4923-4928
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Formalisms for current-voltage (I-V) characteristics of a single molecular junction with electrodes possessing one-, two-, and three-dimensional energy distributions are derived and compared in the framework of elastic scattering theory. Model calculations on a device constituted of 1,4 benzene-dithiolate molecule chemically bonded to two gold electrodes are carried out using hybrid density functional theory. It is shown that the dimensionality of metal contacts has a strong effect on the I-V characteristics of the molecular junction, in particular the shape of the conductance curves. Good agreement with experimental I-V curves has been found for the case of the three-dimensional electron system.
Nyckelord
- transport-properties
- carbon nanotube
- conductance
- wires
- resistance
- formalism
- device
- model
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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