Open AccessSpectral properties and mechanism of instability of nanoengineered silver blocks
Author(s) -
Li Wang,
Wei Xiong,
Yoshiaki Nishijima,
Yukie Yokota,
Kosei Ueno,
Hiroaki Misawa,
Gang Bi,
Jianrong Qiu
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.010640
Subject(s) - materials science , optics , scanning electron microscope , sulfidation , plasmon , surface plasmon resonance , instability , optoelectronics , nanotechnology , composite material , nanoparticle , sulfur , physics , mechanics , metallurgy
The instability of silver nanoblocks under atmospheric conditions is investigated. The localized surface plasmon resonance band of the silver nanoblocks shows a red shift, broadening, and damping with increasing storage time under atmospheric conditions. The change in spectral properties of silver nanoblocks is considered to be due to sulfidation of silver and structural breakage of silver nanoblock based on scanning electron microscope observation and numerical simulation. The effect of aspect ratio of silver nanoblocks on the change in spectral properties of the nanoengineered silver blocks is also discussed.