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

Thiele C, Vieker H, Beyer A, Flavel BS, Hennrich F, Torres DM, Eaton TR, Mayor M, Kappes MM, Gölzhäuser A, Loehneysen HV, et al. (2014)
Applied Physics Letters 104(10).

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
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. (C) 2014 AIP Publishing LLC.
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Applied Physics Letters
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104
Zeitschriftennummer
10
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Thiele C, Vieker H, Beyer A, et al. Fabrication of carbon nanotube nanogap electrodes by helium ion sputtering for molecular contacts. Applied Physics Letters. 2014;104(10).
Thiele, C., Vieker, H., Beyer, A., Flavel, B. S., Hennrich, F., Torres, D. M., Eaton, T. R., et al. (2014). Fabrication of carbon nanotube nanogap electrodes by helium ion sputtering for molecular contacts. Applied Physics Letters, 104(10). doi:10.1063/1.4868097
Thiele, C., Vieker, H., Beyer, A., Flavel, B. S., Hennrich, F., Torres, D. M., Eaton, T. R., Mayor, M., Kappes, M. M., Gölzhäuser, A., et al. (2014). Fabrication of carbon nanotube nanogap electrodes by helium ion sputtering for molecular contacts. Applied Physics Letters 104.
Thiele, C., et al., 2014. Fabrication of carbon nanotube nanogap electrodes by helium ion sputtering for molecular contacts. Applied Physics Letters, 104(10).
C. Thiele, et al., “Fabrication of carbon nanotube nanogap electrodes by helium ion sputtering for molecular contacts”, Applied Physics Letters, vol. 104, 2014.
Thiele, C., Vieker, H., Beyer, A., Flavel, B.S., Hennrich, F., Torres, D.M., Eaton, T.R., Mayor, M., Kappes, M.M., Gölzhäuser, A., Loehneysen, H.V., Krupke, R.: Fabrication of carbon nanotube nanogap electrodes by helium ion sputtering for molecular contacts. Applied Physics Letters. 104, (2014).
Thiele, Cornelius, Vieker, Henning, Beyer, André, Flavel, Benjamin S., Hennrich, Frank, Torres, David Munoz, Eaton, Thomas R., Mayor, Marcel, Kappes, Manfred M., Gölzhäuser, Armin, Loehneysen, Hilbert V., and Krupke, Ralph. “Fabrication of carbon nanotube nanogap electrodes by helium ion sputtering for molecular contacts”. Applied Physics Letters 104.10 (2014).