Copper nanowires electrodeposited in etched single-ion track templates

被引:57
作者
Enculescu, I [1 ]
Siwy, Z
Dobrev, D
Trautmann, C
Toimil-Molares, ME
Neumann, R
Hjort, K
Westerberg, L
Spohr, R
机构
[1] Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany
[2] Natl Inst Mat Phys, Bucharest, Romania
[3] Silesian Tech Univ, Gliwice, Poland
[4] Uppsala Univ, Angstrom Lab, S-75105 Uppsala, Sweden
[5] Uppsala Univ, Svedberg Lab, S-75105 Uppsala, Sweden
来源
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2003年 / 77卷 / 06期
关键词
D O I
10.1007/s00339-003-2216-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
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-mum thickness were irradiated with single swift heavy ions (e.g. An 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 2degrees. 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 10(8) A/cm(2).
引用
收藏
页码:751 / 755
页数:5
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