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Ultraviolet Nanoplasmonics: A Demonstration of Surface-EnhancedRaman Spectroscopy, Fluorescence, and Photodegradation Using GalliumNanoparticles.

Authors :
Yang, Yang
Callahan, John M.
Kim, Tong-Ho
Brown, April S.
Everitt, Henry O.
Source :
Nano Letters. Jun2013, Vol. 13 Issue 6, p2837-2841. 5p.
Publication Year :
2013

Abstract

Self-assembled arrays of hemisphericalgallium nanoparticles depositedby molecular beam epitaxy on a sapphire support are explored as anew type of substrate for ultraviolet plasmonics. Spin-casting a 5nm film of crystal violet upon these nanoparticles permitted the demonstrationof surface-enhanced Raman spectra, fluorescence, and degradation followingexcitation by a HeCd laser operating at 325 nm. Measured local Ramanenhancement factors exceeding 107demonstrate the potentialof gallium nanoparticle arrays for plasmonically enhanced ultravioletdetection and remediation. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
15306984
Volume :
13
Issue :
6
Database :
Academic Search Index
Journal :
Nano Letters
Publication Type :
Academic Journal
Accession number :
88125608
Full Text :
https://doi.org/10.1021/nl401145j