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Seo, Kwanyong
The SEO Group
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  • Flexible solar cell, transparent solar cell, PV-battery hybrid system, hetero-junction solar cell

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Creating Well-Defined Hot Spots for Surface-Enhanced Raman Scattering by Single-Crystalline Noble Metal Nanowire Pairs

Cited 38 times inthomson ciCited 40 times inthomson ci
Title
Creating Well-Defined Hot Spots for Surface-Enhanced Raman Scattering by Single-Crystalline Noble Metal Nanowire Pairs
Other Titles
Creating Well-Defined Hot Spots for Surface-Enhanced Raman Scattering by Single-Crystalline Noble Metal Nanowire Pairs
Author
Kang, TaejoonYoon, IlsunJeon, Ki-SeokChoi, WonjunLee, YonghoonSeo, KwanyongYoo, YoungdongPark, Q-HanIhee, HyotcherlSuh, Yung DougKim, Bongsoo
Keywords
RHODAMINE 6G MOLECULES; DNA DETECTION; SPECTROSCOPY; SERS; NANOPARTICLES; MONOLAYERS; SUBSTRATE; JUNCTIONS; AFM
Issue Date
2009-05
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF PHYSICAL CHEMISTRY C, v.113, no.18, pp.7492 - 7496
Abstract
Well-defined surface-enhanced Raman scattering (SERS) active systems were fabricated by single-crystal line noble metal nanowires. Crossed and parallel nanowire pairs were constructed by using a nanomanipulator to create SERS hot spots in the form of nanowire junction. SERS spectra of brilliant cresyl blue (BCB), p-mercaptoaniline (pMA), and p-mercaptobenzoic acid (pMBA) were observed at the junction of two nanowires. The SERS enhancement and polarization dependence are correlated well with the enhanced electric field intensities calculated by the finite difference time domain (FDTD) method for specific nanowire geometries. These simple and effective SERS active systems have a practical advantage that the hot spots can be readily located and visualized by an optical microscope. These well-defined SERS active systems based on noble metal nanowires can be further developed to find applications in a variety of biological and chemical sensing
URI
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DOI
10.1021/jp809391c
ISSN
1932-7447
Appears in Collections:
ECHE_Journal Papers
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