Three-dimensional patterning and morphological control of porous nanomaterials by gray-scale direct imprinting

被引:32
|
作者
Ryckman, Judson D. [1 ]
Jiao, Yang [1 ]
Weiss, Sharon M. [1 ]
机构
[1] Vanderbilt Univ, Dept Elect Engn & Comp Sci, Nashville, TN 37235 USA
来源
SCIENTIFIC REPORTS | 2013年 / 3卷
关键词
NANOPOROUS GOLD LEAF; SILICON; FABRICATION; BEAM; NANOSCALE; DESIGN; LIGHT; CLOAK;
D O I
10.1038/srep01502
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
07 ; 0710 ; 09 ;
摘要
We present a method for direct three-dimensional (3D) patterning of porous nanomaterials through the application of a premastered and reusable gray-scale stamp. Four classes of 3D nanostructures are demonstrated for the first time in porous media: gradient profiles, digital patterns, curves and lens shapes, and sharp features including v-grooves, nano-pits, and 'cookie-cutter' particles. Further, we demonstrate this technique enables morphological tuning and direct tailoring of nanomaterial properties, including porosity, average pore size, dielectric constant, and plasmonic response. This work opens a rapid and low-cost route for fabricating novel nanostructures and devices utilizing porous nanomaterials, with promising applications spanning diffractive and plasmonic sensing, holography, micro-and transformation optics, and drug delivery and imaging.
引用
收藏
页数:7
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