NDLI: Surface-enhanced Raman scattering of rhodamine 6G on nanowire arrays decorated with gold nanoparticles.

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Surface-enhanced Raman scattering of rhodamine 6G on nanowire arrays decorated with gold nanoparticles.

Content Provider	Semantic Scholar
Author	Chen, Jianing Mårtensson, Thomas Dick, Kimberly A. Deppert, Knut Xu, Hongxing Samuelson, Lars
Copyright Year	2008
Abstract	We investigate the surface-enhanced Raman scattering (SERS) of rhodamine 6G (R6G) adsorbed on Au nanoparticles attached to InP nanowires. We find that nanowire arrays act as frameworks for effective SERS substrates with a significantly higher Raman signal sensitivity than a planar framework of Au nanoparticles adsorbed two-dimensionally on a flat surface. The SERS signal displays a clear polarization-dependent effect when the nanowires are arranged in a row. We also find that the SERS signal increases with time during continuous laser illumination. The plasmon-enhanced optical forces between Au nanoparticles may either move pairs of nanoparticles closer together or attract adsorbed molecules by moving them to the junctions of Au nanoparticle aggregates. Such effects by plasmon optical forces may cause the observed increase of the SERS signal with continuous laser illumination.
Starting Page	275712
Ending Page	275712
Page Count	1
File Format	PDF HTM / HTML
DOI	10.1088/0957-4484/19/27/275712
Alternate Webpage(s)	http://n03.iphy.ac.cn/Article/2008%20Nanotechnology%2019%20275712.pdf
PubMed reference number	21828724
Alternate Webpage(s)	https://doi.org/10.1088/0957-4484%2F19%2F27%2F275712
Journal	Medline
Volume Number	19
Issue Number	27
Journal	Nanotechnology
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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