Measurement of electron transport properties of single molecules

Xiulan Li; Bingqian Xu; Xiaoyin Xiao; Joshua Hihath; Nongjian Tao

doi:10.1143/JJAP.44.5344

Measurement of electron transport properties of single molecules

Xiulan Li, Bingqian Xu, Xiaoyin Xiao, Joshua Hihath, Nongjian Tao

Research output: Contribution to journal › Review article

3 Scopus citations

Abstract

The conductance of a single molecule covalently connected to two gold electrodes can be determined by the statistical analysis of many repeatedly created gold-molecule-gold junctions. Conductance histograms reveal well-defined peaks at integer multiples of a fundamental conductance, which is used to identify the average conductance of a single molecule. The large width of the peaks indicates considerable variations in conductance of individual molecular junctions due to difference in the microscopic details of molecule-electrode contacts. Using the method, electron transport properties of a variety of molecules, from N-alkanedithiol molecules to DNA duplexes, have been studied.

Original language	English (US)
Pages (from-to)	5344-5347
Number of pages	4
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	44
Issue number	7 B
DOIs	https://doi.org/10.1143/JJAP.44.5344
State	Published - Jul 26 2005

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Keywords

Molecular conductance
Molecular electronics
Molecular junction
Molecular resistance

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Cite this

Li, X., Xu, B., Xiao, X., Hihath, J., & Tao, N. (2005). Measurement of electron transport properties of single molecules. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 44(7 B), 5344-5347. https://doi.org/10.1143/JJAP.44.5344

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AU - Li, Xiulan

AU - Xu, Bingqian

AU - Xiao, Xiaoyin

AU - Hihath, Joshua

AU - Tao, Nongjian

PY - 2005/7/26

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N2 - The conductance of a single molecule covalently connected to two gold electrodes can be determined by the statistical analysis of many repeatedly created gold-molecule-gold junctions. Conductance histograms reveal well-defined peaks at integer multiples of a fundamental conductance, which is used to identify the average conductance of a single molecule. The large width of the peaks indicates considerable variations in conductance of individual molecular junctions due to difference in the microscopic details of molecule-electrode contacts. Using the method, electron transport properties of a variety of molecules, from N-alkanedithiol molecules to DNA duplexes, have been studied.

AB - The conductance of a single molecule covalently connected to two gold electrodes can be determined by the statistical analysis of many repeatedly created gold-molecule-gold junctions. Conductance histograms reveal well-defined peaks at integer multiples of a fundamental conductance, which is used to identify the average conductance of a single molecule. The large width of the peaks indicates considerable variations in conductance of individual molecular junctions due to difference in the microscopic details of molecule-electrode contacts. Using the method, electron transport properties of a variety of molecules, from N-alkanedithiol molecules to DNA duplexes, have been studied.

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KW - Molecular electronics

KW - Molecular junction

KW - Molecular resistance

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Access to Document

10.1143/JJAP.44.5344