Electrical Transport Study of Phenylene-Based π-Conjugated Molecules in a Three-Terminal Geometry

Jeong O. Lee, Günther Lientschnig, Frank G H Wiertz, Martin Struijk, Réne A J Janssen, Richard Egberink, David N. Reinhoudt, Andrew C. Grimsdale, Klaus Müllen, Peter Hadley, Cees Dekker

Research output: Contribution to journalArticleResearchpeer-review

Abstract

We fabricated three-terminal devices with conjugated molecules. Two different device layouts were used to measure both very short molecules (with one or two benzene rings) and relatively long ones (as long as 8 nm). To achieve an optimum gate effect, we used aluminum gates covered with a very thin native oxide layer. Molecules with thiol end groups were positioned between the source and drain electrodes by self-assembly. The device yield was low for short molecules, most likely due to defects in the self-assembled monolayers. Most of the devices made with short molecules did not show any gate effect at all; a small gate effect was only observed in two samples made with 1,3-benzenedithiol. Some devices showed clear negative differential conductance peaks. In some devices made with long molecules, we observed a small change of conductance with gate voltage.

Original languageEnglish
Pages (from-to)122-132
Number of pages11
JournalAnnals of the New York Academy of Sciences
Volume1006
DOIs
Publication statusPublished - Dec 2003
Externally publishedYes

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Equipment and Supplies
Molecules
Geometry
Self assembled monolayers
Benzene
Aluminum
Sulfhydryl Compounds
Self assembly
Oxides
Electrodes
Defects
Electric potential

Keywords

  • Conjugated molecules
  • Molecular electronics
  • Transistor

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Lee, J. O., Lientschnig, G., Wiertz, F. G. H., Struijk, M., Janssen, R. A. J., Egberink, R., ... Dekker, C. (2003). Electrical Transport Study of Phenylene-Based π-Conjugated Molecules in a Three-Terminal Geometry. Annals of the New York Academy of Sciences, 1006, 122-132. https://doi.org/10.1196/annals.1292.008

Electrical Transport Study of Phenylene-Based π-Conjugated Molecules in a Three-Terminal Geometry. / Lee, Jeong O.; Lientschnig, Günther; Wiertz, Frank G H; Struijk, Martin; Janssen, Réne A J; Egberink, Richard; Reinhoudt, David N.; Grimsdale, Andrew C.; Müllen, Klaus; Hadley, Peter; Dekker, Cees.

In: Annals of the New York Academy of Sciences, Vol. 1006, 12.2003, p. 122-132.

Research output: Contribution to journalArticleResearchpeer-review

Lee, JO, Lientschnig, G, Wiertz, FGH, Struijk, M, Janssen, RAJ, Egberink, R, Reinhoudt, DN, Grimsdale, AC, Müllen, K, Hadley, P & Dekker, C 2003, 'Electrical Transport Study of Phenylene-Based π-Conjugated Molecules in a Three-Terminal Geometry' Annals of the New York Academy of Sciences, vol. 1006, pp. 122-132. https://doi.org/10.1196/annals.1292.008
Lee, Jeong O. ; Lientschnig, Günther ; Wiertz, Frank G H ; Struijk, Martin ; Janssen, Réne A J ; Egberink, Richard ; Reinhoudt, David N. ; Grimsdale, Andrew C. ; Müllen, Klaus ; Hadley, Peter ; Dekker, Cees. / Electrical Transport Study of Phenylene-Based π-Conjugated Molecules in a Three-Terminal Geometry. In: Annals of the New York Academy of Sciences. 2003 ; Vol. 1006. pp. 122-132.
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