Oxidation-Resistant Silver Nanostructures for Ultrastable Plasmonic Applications

被引：51

作者：

Sachan, R. ^{[1
]}

Ramos, V. ^{[1
]}

Malasi, A. ^{[2
]}

Yadavali, S. ^{[2
]}

Bartley, B. ^{[1
]}

Garcia, H. ^{[3
]}

Duscher, G. ^{[1
,4
]}

Kalyanaraman, R. ^{[1
,2
]}

机构：

[1] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

[2] Univ Tennessee, Dept Chem & Biomol Engn, Knoxville, TN 37996 USA

[3] So Illinois Univ, Dept Phys, Edwardsville, IL 62026 USA

[4] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA

来源：

ADVANCED MATERIALS | 2013年 / 25卷 / 14期

基金：

美国国家科学基金会;

关键词：

silver; nanoparticle arrays; bimetallic nanoparticles; oxidation-resistance; surface plasmons; ENHANCED RAMAN-SCATTERING; NANOPARTICLES; SPECTROSCOPY;

D O I：

10.1002/adma.201204920

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Reduced degradation (oxidation) of silver nanoparticles (NPs) is achieved by contacting Ag with immiscible Co NPs. The relative decay of the plasmon peak (plot) shows that pure Ag NPs (blue dashed curve) decay by 25% in ca 20 days, whereas AgCo NPs last about 10 times longer, requiring nearly five months for a similar decay (red solid curve). The TEM images for both Ag and AgCo were taken after 50 days of storage under ambient conditions.

引用

页码：2045 / 2050

页数：6

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