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Copper nanowires electrodeposited in etched single-ion track templates

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Abstract

The replication of single-ion track templates opens up the possibility of accessing electrical properties of nanowires without using lithographic techniques. Polycarbonate foils of 30-μm thickness were irradiated with single swift heavy ions (e.g. Au 11.4 or Xe 8.3 MeV/nucleon). By controlled one-sided etching of the damage trail caused by the ion, templates containing a single conical pore were prepared. The narrow pore openings had diameters down to 25 nm and opening angles up to 2°. By electrochemical deposition of copper, single conical wires were obtained. The electric current recorded during electrodeposition reflects the geometry of the pore. The wires were provided with electrical contacts. Current–voltage measurements confirmed that their resistance was ohmic. The wires could withstand a maximum current density above 108 A/cm2.

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Authors and Affiliations

  1. Gesellschaft für Schwerionenforschung, Darmstadt, Germany

    I. Enculescu , Z. Siwy , D. Dobrev , C. Trautmann , M.E. Toimil Molares , R. Neumann  & R. Spohr

  2. National Institute of Materials Physics, Bucharest-Magurele, Romania

    I. Enculescu

  3. Silesian University of Technology, Gliwice, Poland

    Z. Siwy

  4. The Ångström Laboratory, Uppsala University, Sweden

    K. Hjort

  5. Svedberg Laboratory, Uppsala University, Sweden

    L. Westerberg

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  1. I. Enculescu
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  2. Z. Siwy
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  3. D. Dobrev
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  4. C. Trautmann
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  5. M.E. Toimil Molares
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  6. R. Neumann
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  7. K. Hjort
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  8. L. Westerberg
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  9. R. Spohr
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Correspondence to I. Enculescu .

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PACS

61.46.+w; 81.07.-b

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Enculescu , I., Siwy , Z., Dobrev , D. et al. Copper nanowires electrodeposited in etched single-ion track templates. Appl Phys A 77, 751–755 (2003). https://doi.org/10.1007/s00339-003-2216-3

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  • DOI: https://doi.org/10.1007/s00339-003-2216-3

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