
The advantage of Topological fine filmNanomaterialsis that it can provide more professional and thoughtful solutions timely and accurately according to the actual needs of customers.At the same time, Our company follow the latest developments on Industry and agriculture,Machinery and industry equipment,Industry-specific equipment supply, and establish long and steady partnership relation with many well-known enterprises in the same industry , to provide customers with the most professional, advanced Homogeneous membrane.Details:4.SERS technology, like the infrared spectrum, belongs to the molecular vibrational spectrum and can reflect the characteristic structure of the molecule. However, the Raman scattering effect is a very weak process, and generally its intensity is only about 10^-10 of the incident light intensity. Therefore, the Raman signal is very weak, and it is almost necessary to use some kind of enhancement effect to conduct Raman spectroscopy on surface-adsorbed species.SERS technology is the first high-quality SERS technology obtained by Fleischmann et al. after roughening the surface of smooth silver electrodes in 1974 to adsorb monolayer pyridine molecules on the surface of silver electrodes. Van Duyne and his collaborators then found through experiments and calculations that the Raman scattering signal of each pyridine molecule adsorbed on the rough silver surface is about 6 orders of magnitude stronger than the Raman scattering signal of pyridine in the solution phase. It is pointed out that this is a surface enhancement effect related to rough surfaces, which is called Surface-enhanced Raman spectroscopy (SERS) effect.

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