Formation of single-domain homogeneous Au nanoparticle monolayer at the water/oil interface and its application to surface-enhanced Raman scattering

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We fabricated a closely packed Au nanoparticle monolayer with millimeter dimensions on a hydrophilic Si substrate using a water/oil interface method. The surface-enhanced Raman scattering of Rhodamine 6G dye molecules adsorbed on these substrates was measured. For this structure, we simulated the electromagnetic-field enhancement when the laser light was focused on the sample, assuming the hexagonal unit cell. We suggest that the strong field enhancement arises from interstitial gaps between nanoparticles. (C) 2011 American Vacuum Society. [DOI: 10.1116/1.3566018]
Publisher
A V S AMER INST PHYSICS
Issue Date
2011-03
Language
English
Article Type
Article; Proceedings Paper
Keywords

GOLD NANOPARTICLES; ORDERED MONOLAYER; SPECTROSCOPY; ARRAYS; MOLECULES; SERS; FABRICATION; SPECTRA; SENSORS; GAPS

Citation

JOURNAL OF VACUUM SCIENCE TECHNOLOGY B, v.29, no.2

ISSN
1071-1023
URI
http://hdl.handle.net/10203/95798
Appears in Collection
CH-Journal Papers(저널논문)
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