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Proceedings Paper

Modeling of charge transport through thiophene nanowire
Author(s): V. K. Lamba; S. Engles; P. Yadav; S. Dhanda
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Paper Abstract

In the present work we have used a two probe model, consisting of sandwiched molecules wires, of thiophene, between platinum electrodes, to study the mechanism of charge transport, temperaturedependence, atomic configuration of electrodes, molecule-electrode contacts, as well as effect of rotation of molecular wire on the conductance. We find that for short length the charge transport is explained by tunnelling, and with increase in molecular length it changes hopping phenomena; which in turn supported by modeling the conductance of molecular wire with change in temperature for the system. Thus the results shows highly length dependent and temperature invariant behaviour in the short wires and weakly length dependent and temperature variant behaviour in the longer molecular wires. The geometric symmetries for the thiophene molecule lead to the difference of the contact configurations between the molecule and the electrodes, resulting in different conductance.

Paper Details

Date Published: 15 October 2012
PDF: 7 pages
Proc. SPIE 8549, 16th International Workshop on Physics of Semiconductor Devices, 85492Z (15 October 2012); doi: 10.1117/12.924148
Show Author Affiliations
V. K. Lamba, Haryana College of Technology & Management (India)
S. Engles, Banasthali Univ. (India)
P. Yadav, KLP College (India)
S. Dhanda, Haryana College of Technology & Management (India)

Published in SPIE Proceedings Vol. 8549:
16th International Workshop on Physics of Semiconductor Devices
Monica Katiyar; B. Mazhari; Y N Mohapatra, Editor(s)

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