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https://hdl.handle.net/10356/97560
Title: | High-density metallic nanogaps fabricated on solid substrates used for surface enhanced Raman scattering | Authors: | Lu, Gang Li, Hai Wu, Shixin Chen, Peng Zhang, Hua |
Issue Date: | 2012 | Source: | Lu, G., Li, H., Wu, S., Chen, P., & Zhang, H. (2012). High-density metallic nanogaps fabricated on solid substrates used for surface enhanced Raman scattering. Nanoscale, 4(3), 860-863. | Series/Report no.: | Nanoscale | Abstract: | The Raman signal of adsorbed molecules can be significantly enhanced by utilizing metallic structures with high-density Raman hot spots used as surface enhanced Raman scattering (SERS) substrates. In this work, we develop a simple, convenient and tunable method to fabricate high-density Ag or Au nanogaps on Si wafers. These nanogaps can serve as Raman hot spots, leading to dramatic enhancement of the Raman signal. The high-density nanogaps can be formed by repeating the electroless deposition of Ag NPs (or Au NPs) and coating of p-aminothiophenol (PATP, a Raman probe) on the deposited Ag NPs (or Au NPs) through the self-assembly process. After removal of PATP by O2 plasma, the as-fabricated SERS substrate can be reused for the detection of other molecules. | URI: | https://hdl.handle.net/10356/97560 http://hdl.handle.net/10220/10687 |
ISSN: | 2040-3364 | DOI: | 10.1039/c1nr10997a | Rights: | © 2012 The Royal Society of Chemistry. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | MSE Journal Articles |
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