Plasmoelectric potentials in metal nanostructures

被引：212

作者：

Sheldon, Matthew T. ^{[1
]}

van de Groep, Jorik ^{[2
]}

Brown, Ana M. ^{[1
]}

Polman, Albert ^{[2
]}

Atwater, Harry A. ^{[1
]}

机构：

[1] CALTECH, Thomas J Watson Labs Appl Phys, Pasadena, CA 91125 USA

[2] FOM Inst AMOLF, Ctr Nanophoton, NL-1098 XG Amsterdam, Netherlands

来源：

SCIENCE | 2014年 / 346卷 / 6211期

基金：

欧洲研究理事会;

关键词：

ANTENNAS; LIGHT;

D O I：

10.1126/science.1258405

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：

The conversion of optical power to an electric potential is of general interest for energy applications and is typically obtained via optical excitation of semiconductor materials. We developed a method for achieving electric potential that uses an all-metal geometry based on the plasmon resonance inmetal nanostructures. In arrays of gold nanoparticles on an indium tin oxide substrate and arrays of 100-nanometer-diameter holes in 20-nanometer-thick gold films on a glass substrate, we detected negative and positive surface potentials during monochromatic irradiation at wavelengths belowor above the plasmon resonance, respectively. We observed plasmoelectric surface potentials as large as 100 millivolts under illumination of 100 milliwatts per square centimeter. Plasmoelectric devices may enable the development of all-metal optoelectronic devices that can convert light into electrical energy.

引用

页码：828 / 831

页数：4

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