A Study on the Scattering and Absorption Efficiencies of Si-Ag Coaxial Nanowire

Abstract

Scattering and Absorption Efficiencies of Si-Ag Coaxial nanowire (NWs) weresimulated using Mie-Lorentz scattering approach. The thickness of Ag shell wasfixed at around 10 nm with Si core diameter of (10, 20, 30 and 40) nm. ScatteringEfficiencies ( ) and Absorption Efficiencies ( ) of core-shell nanowire as afunction of wavelength (300-2000 nm) within various core diameters werecalculated. The study shows a remarkable behavior of scattering for un-polarizedlight in Silicon nanowire (core only) with wavelength of (320- 500nm). In otherwords, adding Ag shell has decreased the scattering efficiency of core-shellnanowire for all diameters.