Optical properties of hexagonally arranged triangular arrays of Au-Ag nanoparticles

被引：0
|
作者：
Zheng, Jiachun [1 ]
Liu, Jing [1 ,2 ,3 ]
Chen, Xiaoyi [4 ]
Cai, Haoyuan [1 ]
Kong, Lingqi [2 ,3 ]
机构：
[1] Jimei Univ, Sch Informat Engn, Xiamen 361021, Fujian, Peoples R China
[2] Xiamen Univ, Dept Phys, Xiamen 361005, Fujian, Peoples R China
[3] Xiamen Univ, China Australia Joint Lab Funct Nanomat, Xiamen 361005, Fujian, Peoples R China
[4] Natl Univ Singapore, Dept Phys, Singapore 117551, Singapore
来源：
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2015年 / 9卷 / 5-6期
关键词：
DDA; NSL; Thickness; Au-Ag nanoparticle; NANOSPHERE LITHOGRAPHY; SILVER NANOPARTICLES; NANOSTRUCTURES; CONVERSION; SPECTRA;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Optical properties of hexagonally arranged triangular arrays of Au-Ag nanoparticles are systematically investigated. A gold thin film is deposited on top of the silver nanoparticles supported with substrate. The hybrid nanoparticles can prevent pure silver nanoparticles from oxidation and the stability of the hybrid Au-Ag nanoparticles compared with pure silver nanoparticles has been verified. Influence of the particle thickness on the extinction spectrum is studied and optimized through discrete dipole approximation (DDA) method and nanosphere lithography (NSL). Considering the nano-fabrication condition, 40 nm thickness is selected and the array is fabricated. The experimental results demonstrate that the measured spectrums are basically in agreement with the theoretical spectrums derived by the DDA calculation.
引用
收藏
页码：630 / 635
页数：6
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