Au-Ag-Cu nano-alloys: tailoring of permittivity

被引：54

作者：

Hashimoto, Yoshikazu ^{[1
]}

Seniutinas, Gediminas ^{[2
,3
]}

Balcytis, Armandas ^{[2
,4
]}

Juodkazis, Saulius ^{[2
,3
,5
]}

Nishijima, Yoshiaki ^{[1
]}

机构：

[1] Yokohama Natl Univ, Grad Sch Engn, Dept Elect & Comp Engn, Hodogaya Ku, 79-5 Tokiwadai, Yokohama, Kanagawa 2408501, Japan

[2] Swinburne Univ Technol, Fac Engn & Ind Sci, Ctr Microphoton, Hawthorn, Vic 3122, Australia

[3] Australian Natl Fabricat Facil, MCN, Clayton, Vic 3168, Australia

[4] Ctr Phys Sci & Technol, Inst Phys, 231 Savanoriu Ave, LT-02300 Vilnius, Lithuania

[5] King Abdulaziz Univ, Ctr Nanotechnol, Jeddah 21589, Saudi Arabia

来源：

SCIENTIFIC REPORTS | 2016年 / 6卷

基金：

澳大利亚研究理事会;

关键词：

SILVER NANOPARTICLES; OPTICAL-PROPERTIES; HYDROGEN-STORAGE; RANDOM PATTERNS; GOLD; ABSORPTION; SHAPE; CO; SENSITIVITY; ELEMENTS;

D O I：

10.1038/srep25010

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

070301 [无机化学]; 070403 [天体物理学]; 070507 [自然资源与国土空间规划学]; 090105 [作物生产系统与生态工程];

摘要：

Precious metal alloys enables new possibilities to tailor materials for specific optical functions. Here we present a systematic study of the effects of a nanoscale alloying on the permittivity of Au-Ag-Cu metals at 38 different atomic mixing ratios. The permittivity was measured and analyzed numerically by applying the Drude model. X-ray diffraction (XRD) revealed the face centered cubic lattice of the alloys. Both, optical spectra and XRD results point towards an equivalent composition-dependent electron scattering behavior. Correlation between the fundamental structural parameters of alloys and the resulting optical properties is elucidated. Plasmonic properties of the Au-Ag-Cu alloy nanoparticles were investigated by numerical simulations. Guidelines for designing plasmonic response of nano-structures and their patterns are presented from the material science perspective.

引用

页数：9

共 45 条

[1]

A Light Harvesting Antenna Using Natural Extract Graminoids Coupled with Plasmonic Metal Nanoparticles for Bio-Photovoltaic Cells [J].