Aluminum Nano arrays for Plasmon-Enhanced Light Harvesting

被引：91

作者：

Lee, Minah ^{[1
]}

Kim, Jong Uk ^{[1
]}

Lee, Ki Joong ^{[2
]}

Ahn, SooHoon ^{[3
]}

Shin, Yong-Beom ^{[2
,4
]}

Shin, Jonghwa ^{[1
]}

Park, Chan Beum ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305338, South Korea

[2] Korea Res Inst Biosci & Biotechnol, Biomed Translat Res Ctr, Taejon 305806, South Korea

[3] Korea Univ Sci & Technol, Korea Inst Nucl Safety, Dept Mech & Mat Engn, Taejon 305350, South Korea

[4] Korea Univ Sci & Technol, Nanobiotechnol Major, Taejon 305350, South Korea

来源：

ACS NANO | 2015年 / 9卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

plasmon; aluminum; polydopamine; light harvesting; nanoantenna; CORROSION PROTECTION; METAL NANOSTRUCTURES; RAMAN-SCATTERING; NANOPARTICLES; SILVER; RESONANCE; EFFICIENT; SOLAR; PHOTOCATALYSIS; NANOCONTAINERS;

D O I：

10.1021/acsnano.5b01541

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The practical limits of coinage-metal-based plasmonic materials demand sustainable, abundant alternatives with a wide plasmonic range of the solar energy spectrum. Aluminum (Al) is an emerging alternative, but its instability in aqueous environments critically limits its applicability to various light-harvesting systems. Here, we report a design strategy to achieve a robust platform for plasmon-enhanced light harvesting using Al nanostructures. The incorporation of mussel-inspired polydopamine nanolayers in the Al nanoarrays allowed for the reliable use of Al plasmonic resonances in a highly corrosive photocatalytic redox solution and provided nanoscale arrangement of organic photosensitizers on Al surfaces. The Al photosensitizer core shell assemblies exhibited plasmon-enhanced light absorption, which resulted in a 300% efficiency increase in photo-to-chemical conversion. Our strategy enables stable and advanced use of aluminum for plasmonic light harvesting.

引用

页码：6206 / 6213

页数：8

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