Optical properties of silver nanowire arrays with 35 nm periodicity

Abstract

We present highly ordered Ag nanowire arrays with 35nm periodicity grown on patterned templates. The optical properties measured using generalized ellipsometry exhibit strong anisotropy. Dielectric functions are calculated by fitting the Jones matrix elements with a biaxial layer model, accounting for both metallic behavior and localized surface plasmon resonances. The amplitude and wavelength maximum of the plasmon resonance perpendicular to the wires increase with increasing wire width and thickness. The dielectric coefficients of 10-mm-wide nanowires show a transition behavior from insulating in UV to metallic above 550nm. Their potential application as polarization-dependent plasmonic-scattering transparent conductive electrodes is discussed.

Patterned silver nanowires using the gravure printing process for flexible applications

“…Several Ag NW deposition methods, including evaporation, template-guided synthesis, ultraviolet photoreduction, solid-liquid phase arc discharge, and electrochemical methods, have been developed for fabricating patterned on a variety of flexible substrates [17][18][19]. These methods are unfortunately unsuitable for the mass-production of patterned Ag NWs, because the methods are not conducted under ambient conditions, which is a requirement for the production of low-cost large-area electronics patterning methods.…”

Dispersion of polarization coupling, localized and collective plasmon modes in a metallic photonic crystal mapped by Mueller Matrix Ellipsometry

“…Therefore, the polarization coupling, and the vast information that may be derived from it, has for the most part simply been neglected. The importance of the polarization coupling can be directly observed in Mueller matrix spectroscopic studies with complete azimuthal sample rotation of inherently anisotropic systems, such as self-assembled Ag or Au particles along the ripples of a nanopatterned substrate [7][8][9], meta-surfaces of U-shaped particles [10], slanted metallic pillars [11], and chiral structures [12]. For highly ordered arrays of plasmonic/metallic particles, the lattice plays a major role, and a number of reports show experimentally and numerically that the localized surface plasmon resonance (LSPR) is strongly perturbed by the Rayleigh/Wood modes that occurs in photonic crystals [6,13], i.e.…”

Markov-chain model of classified atomistic transition states for discrete kinetic Monte Carlo simulations

“…Although the method described in the previous sections is general to many lattice-based systems, a strong motivating factor for its development was an understanding of experimental work of Ranjan et al [13], concerned with the deposition of Au and Ag clusters on silica surfaces where ripple structures had been prepatterned using an ion beam. In this section the application to this problem is described.…”