Journal
APPLIED SURFACE SCIENCE
Volume 211, Issue 1-4, Pages 189-193Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0169-4332(03)00225-3
Keywords
laser; ablation; colloids; wire; silver; solution
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We have performed laser irradiation at 355 nm onto spherical silver colloids in pure water, which were prepared by laser ablation of silver plate in pure water. In addition to size-reduced particles due to fragmentation, we have found that nano-size wire structures were formed in solution for the first time. The width of the wires was in the 10-100 nm range, and the length of long wires was more than 1 mum. Electron diffraction patterns revealed that these wires were composed of pure silver. It was suggested that the wires were formed via fusion of particles photo-thermally melted by laser irradiation. (C) 2003 Elsevier Science B.V. All rights reserved.
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