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Title 

Aluminum nanoarrays for plasmon-enhanced light harvesting

Authors 

M LeeJ U KimKi Joong LeeS AhnYong Beom ShinJ ShinC B Park

Publisher 

American Chemical Society

Issue Date 

2015

Citation 

ACS Nano, vol. 9, no. 6, pp. 6206-6213

Keywords 

aluminumlight harvestingnanoantennaplasmonpolydopamine

Abstract 

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.

ISSN 

1936-0851

Link 

http://dx.doi.org/10.1021/acsnano.5b01541

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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