Localized Surface Plasmon Resonance of Silver Nanotriangles Synthesized by a Versatile Solution Reaction
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چکیده
منابع مشابه
Localized Surface Plasmon Resonance of Silver Nanotriangles Synthesized by a Versatile Solution Reaction
The surface plasmon resonance (SPR) of silver nanoparticles can be tuned throughout the visible and near-infrared region by their shape and size. Considering SPR applications, an easy and controllable method for preparing the silver nanocrystals with defined shape and size, is necessary. In this work, the triangular silver nanoplates were synthesized by reducing Ag(+) ions with ascorbic acid in...
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We studied the spectral evolution of plasmon modes associated with silver nanotriangles as a function of dielectric overlayer thickness in the range of 5-300 nm. A substantial red-shift of the resonance is observed that oscillates with increasing over-layer thickness. We explain this previously unreported oscillation through the cavity quantum electrodynamical effect of the array of triangles c...
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The plasmonic properties of single silver triangular nanoprisms are investigated using dark-field optical microscopy and spectroscopy. Two distinct localized surface plasmon resonances (LSPR) are observed. These are assigned as in-plane dipolar and quadrupolar plasmon excitations using electrodynamic modeling based on the discrete dipole approximation (DDA). The dipole resonance is found to be ...
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ژورنال
عنوان ژورنال: Nanoscale Research Letters
سال: 2015
ISSN: 1931-7573,1556-276X
DOI: 10.1186/s11671-015-1058-1