| 光谱学与光谱分析 |
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| Preparation and SERS Activity Studies on Substrate of Nano-Silver Film with Broad Plasma Absorption Band |
| ZHANG De-qing, SI Min-zhen*, LIU Ren-ming, LIU Zhen-quan |
| Department of Physics and Electronic Science, Chuxiong Normal University, Chuxiong 675000, China |
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Abstract A highly reproducible and broad plasma absorption band nano-silver film was prepared by electrostatic self-assembly technology. The size of nano-silver particles on the surface of silver film, in the scanning electron microscopy (SEM) micrograph, is in a wide distribution from 18 to 200 nm. At the same time, the ultraviolet-visible spectrophotometer was employed to detect the nano-silver film. There is a broad plasma absorption band in the UV-Vis spectrum. To test the SERS activity of the nano-silver film, crystal violet and serum of healthy person were used as probe molecules and the high quality SERS spectra were obtained.
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Received: 2012-02-28
Accepted: 2012-06-05
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Corresponding Authors:
SI Min-zhen
E-mail: siminzhen@hotmail.com
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