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Fabrication of carbon nanotube nanogap electrodes by helium ion sputtering for molecular contacts

Thiele, Cornelius ; Vieker, Henning ; Beyer, André ; Flavel, Benjamin S. ; Hennrich, Frank ; Muñoz Torres, David ; Eaton, Thomas R. ; Mayor, Marcel ; Kappes, Manfred M. ; Gölzhäuser, Armin ; Löhneysen, Hilbert v. ; Krupke, Ralph (2014)
Fabrication of carbon nanotube nanogap electrodes by helium ion sputtering for molecular contacts.
In: Applied Physics Letters, 104 (10)
doi: 10.1063/1.4868097
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

Carbon nanotube nanogaps have been used to contact individual organic molecules. However, the reliable fabrication of a truly nanometer-sized gap remains a challenge. We use helium ion beam lithography to sputter nanogaps of only (2.8 ± 0.6) nm size into single metallic carbon nanotubes embedded in a device geometry. The high reproducibility of the gap size formation provides a reliable nanogap electrode testbed for contacting small organic molecules. To demonstrate the functionality of these nanogap electrodes, we integrate oligo(phenylene ethynylene) molecular rods, and measure resistance before and after gap formation and with and without contacted molecules.

Typ des Eintrags: Artikel
Erschienen: 2014
Autor(en): Thiele, Cornelius ; Vieker, Henning ; Beyer, André ; Flavel, Benjamin S. ; Hennrich, Frank ; Muñoz Torres, David ; Eaton, Thomas R. ; Mayor, Marcel ; Kappes, Manfred M. ; Gölzhäuser, Armin ; Löhneysen, Hilbert v. ; Krupke, Ralph
Art des Eintrags: Bibliographie
Titel: Fabrication of carbon nanotube nanogap electrodes by helium ion sputtering for molecular contacts
Sprache: Englisch
Publikationsjahr: 2014
Verlag: AIP Publishing LLC
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Applied Physics Letters
Jahrgang/Volume einer Zeitschrift: 104
(Heft-)Nummer: 10
DOI: 10.1063/1.4868097
Kurzbeschreibung (Abstract):

Carbon nanotube nanogaps have been used to contact individual organic molecules. However, the reliable fabrication of a truly nanometer-sized gap remains a challenge. We use helium ion beam lithography to sputter nanogaps of only (2.8 ± 0.6) nm size into single metallic carbon nanotubes embedded in a device geometry. The high reproducibility of the gap size formation provides a reliable nanogap electrode testbed for contacting small organic molecules. To demonstrate the functionality of these nanogap electrodes, we integrate oligo(phenylene ethynylene) molecular rods, and measure resistance before and after gap formation and with and without contacted molecules.

Freie Schlagworte: Carbon nanotubes, Electrodes, Nanofabrication, Nanotube devices, Gels
Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Molekulare Nanostrukturen
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft
11 Fachbereich Material- und Geowissenschaften
Hinterlegungsdatum: 08 Jan 2015 12:28
Letzte Änderung: 08 Jan 2015 12:28
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