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Silver fractal networks for surface-enhanced Raman scattering substrates |
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| Authors: | T. Qiu X.L. Wu J.C. Shen P.N. Shen |
| Affiliation: | a Department of Physics, Southeast University, Nanjing 210096, People's Republic of China b National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China c Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong, China |
| Abstract: | Based on diffusion-limited aggregation process, a convenient nanotechnique is demonstrated to obtain large silver fractal networks for a surface-enhanced Raman scattering (SERS)-active substrate. The silver fractal networks are of high SERS enhancement factor, large dynamical range. The observed SERS efficiency can be explained in terms of strongly localized plasmon modes relative to the single particle plasmon resonance. |
| Keywords: | 33.20.Fb 61.43.Hv 73.20.Mf |
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