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Metal-Molecule Contacts and Charge Transport across Monomolecular Layers: Measurement and Theory
Abstract
Charge transport studies across molecular length scales under symmetric and asymmetric metal-molecule contact conditions using a simple crossed-wire tunnel junction technique are presented. It is demonstrated that oligo(phenylene ethynylene), a conjugated organic molecule, acts like a molecular wire under symmetric contact conditions, but exhibits characteristics of a molecular diode when the connections are asymmetric. To understand this behavior, we have calculated current-voltage (I-V) characteristics using extended Huckel theory coupled with a Green's function approach. The experimentally observed I-V characteristics are in excellent qualitative agreement with the theory.
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Cites
Electronic Transport in Mesoscopic Systems
Datta, S. (1995) · doi:10.1017/cbo9780511805776 · Cited by 7,704
Cited by
Metzger, R. M. (2015) · Chemical Reviews · doi:10.1021/cr500459d · Cited by 380
Li, T., Hu, W., & Zhu, D. (2010) · Advanced Materials · doi:10.1002/adma.200900864 · Cited by 269
Magnetoresistance of nanoscale molecular devices based on Aharonov–Bohm interferometry
Hod, O., Baer, R., & Rabani, E. (2008) · Journal of Physics: Condensed Matter · doi:10.1088/0953-8984/20/38/383201 · Cited by 40
Single-molecule quantum tunnelling sensors
Yi, L., Yang, Y., Zeng, B.-F., Liu, X., Edel, J. B., Ivanov, A. P., & Tang, L. (2026) · Chemical Society Reviews · doi:10.1039/d4cs00375f · Cited by 12
Metadata
- Authors
- Kushmerick, J. G., Holt, D. B., Yang, J. C., Naciri, J., Moore, M. H., & Shashidhar, R.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2002-08-05
- Volume
- 89
- Issue
- 8
- Pages
- 086802-086802
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2055496682
- Cited by
- 366
- References
- 1
- FWCI
- 32.25
- Type
- journal article
- Language
- en
- Open access
- closed
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