期刊
NANO LETTERS
卷 13, 期 2, 页码 350-357出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl303161d
关键词
Plasmonics; soft lithography; gold nanoparticles; ammonium thiocyanate; ligand exchange; dielectric function
类别
资金
- Office of Naval Research Multidisciplinary University Research Initiative [ONR-N00014-10-1-0942]
- U.S. Department of Energy Office of Basic Energy Sciences, Division of Materials Science and Engineering [DE-SC0002158]
- NSF [DMS-0935165, DMR05-1120901]
- Direct For Mathematical & Physical Scien
- Division Of Mathematical Sciences [0935165] Funding Source: National Science Foundation
We demonstrate optical metamaterial design using colloidal gold nanocrystal building blocks. In the solid state, chemically exchanging the nanocrystals' surface-capping molecules provides a tailorable dielectric-to-metal transition exhibiting a 1010 range in DC conductivity and dielectric permittivity ranging from everywhere positive to everywhere negative throughout the visible-to-near-IR. Direct, wide-area nanoimprinting of subwavelength superstructures at room temperature, on plastic and glass substrates, affords plasmonic resonances ranging from 660 to 1070 nm, in agreement with numerical simulations.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据