de Lima, Denille Brito and Reis, Marcos Allan Leite and de Souza, Fabricio Macedo and Del Nero, Jordan (2008) A general rule for nanoelectronic push-pull devices based on source-sigma bridge-drain. JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE, 5 (4). pp. 563-566.
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In this paper we show that, beyond the particular models, utilizing an hybrid equilibrium/nonequilibrium methodologies it is possible to create a general model for organics push-pull nanoscale devices within sigma bonds in the backbone. It is shown by direct quantum-mechanic calculations under external electric field and a nonequilibrium calculation based on the ballistic Landauer-Buttiker equation that I-V curves are comparable to the equilibrium charge distribution results. These related models were successfully applied to the alkane-thiol derivatives presenting a bi-directional rectification response with two operational regions and a very low commutation lost, thus revealing important applications for communication technologies. These results could provide novel insights to the emerging and fast growth field of molecular electronics.
|Uncontrolled Keywords:||Landauer formula; push-pull device; donor-sigma bridge-acceptor; coupled quantum mechanics/green function; two-terminal device|
|Subjects:||Physical Science > Nanophysics|
Physical Science > Nanoelectronics
|Deposited By:||Anuj Seth|
|Deposited On:||17 Dec 2008 12:20|
|Last Modified:||19 Jan 2009 13:56|
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