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Large-area, well-ordered, uniform-sized bowtie nanoantenna arrays for surface enhanced Raman scattering substrate with ultra-sensitive detection.
- Source :
- Applied Physics Letters; 7/22/2013, Vol. 103 Issue 4, p041903-041903-4, 1p, 1 Black and White Photograph, 1 Diagram, 3 Graphs
- Publication Year :
- 2013
-
Abstract
- We report the fabrication of large-area, well-ordered, uniform-sized noble metal bowtie nanoantenna arrays used as an ultra-sensitive surface-enhanced Raman scattering (SERS) substrate by a refined combination of colloid lithography and subsequent oxygen plasma processing. The tip-to-tip distance between neighboring nanotriangles is made as small as 10 nm by accurately controlling the etching time. Owing to the nanoscale property, the as-fabricated Ag bowtie nanoantenna arrays exhibit a local SERS enhancement larger than 107. The experimental results were confirmed by theoretical calculations. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 103
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 89395494
- Full Text :
- https://doi.org/10.1063/1.4816344