Aligned Silver Nanoparticles on Rippled Silicon Templates Exhibiting Anisotropic Plasmon Absorption
Aligned Silver Nanoparticles on Rippled Silicon Templates Exhibiting Anisotropic Plasmon Absorption
Oates, T. W. H.; Keller, A.; Facsko, S.; Mücklich, A.
Abstract
Aligned silver nanoparticles, grown by combining two simple bottom-up techniques, are reported. Physical vapor-deposited silver adatoms are shown to form nanoparticles preferentially in the valleys of rippled silicon templates prepared by low-energy ion bombardment. A 35-nm ripple periodicity produced highly aligned structures with a 0.21 eV polarization-dependent shift in the plasmon resonance peak. The speed and simplicity of the method is viable for cost-effective, large-scale production of mesoscale aligned nanostructures with adjustable periodicity.
Keywords: Self-organization; Self-alignment; Plasmon coupling; SERS; Island films
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Plasmonics 2(2007), 47-50
DOI: 10.1007/s11468-007-9025-z
Cited 99 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-11099