Conductance of a conjugated molecule with carbon nanotube contacts
| Autor: | M. K. Ashraf, Roger K. Lake, Nicolas Bruque, Thomas R. Helander, Gregory J. O. Beran |
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| Rok vydání: | 2009 |
| Předmět: |
Materials science
Condensed matter physics FOS: Physical sciences Conductance 02 engineering and technology Carbon nanotube Conjugated system Orders of magnitude (numbers) 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Molecular physics Molecular conformation Electronic Optical and Magnetic Materials law.invention Condensed Matter - Other Condensed Matter Quantum transport law 0103 physical sciences Molecular orbital 010306 general physics 0210 nano-technology Other Condensed Matter (cond-mat.other) |
| Zdroj: | Physical Review B. 80 |
| ISSN: | 1550-235X 1098-0121 |
| Popis: | Calculations of the conductance of a carbon nanotube (CNT)-molecule-CNT structure are in agreement with experimental measurements [1]. The features in the transmission correspond directly to the features of the isolated molecular orbitals. The HOMO provides conductance at low bias that is relatively insensitive to the end groups of the cut CNTs, the cut angle, or the number of molecular bridges. A molecular conformation change not directly in the path of the carrier transport increases the resistance by over 2 orders of magnitude. [1] X. Guo, J. P. Small, J. E. Klare, Y. Wang, M. S. Purewal, I. W. Tam, B. H. Hong, R. Caldwell, L. Huang, S. O'Brien, et al., Science 311, 356 (2006), URL http://www.sciencemag.org/cgi/content/abstract/311/5759/356 15 Pages, 4 figures, 1 table |
| Databáze: | OpenAIRE |
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