Batch preparation of linear Au and Ag nanoparticle chains via wet chemistry.
basic_science · Level V
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Abstract
We present a simple, wet-chemical method for fabricating linear chains of Au and Ag nanoparticles by selectively etching alternating segments from striped metal nanowires. Nanowires composed of sacrificial Ni segments as well as Au and/or Ag segments were prepared by templated electrodeposition in the pores of alumina membranes. After removal from the membrane, wires were coated with SiO2, and selective etching revealed the nanoparticle chains. Extinction spectra are presented as a function of interparticle spacing.
Medical subject headings
- Gold
- Nanostructures
- Silver