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Single-molecule surface-enhanced Raman scattering of R6G in aqueous environment under non-resonance conditions |
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| Authors: | Enzhong Tan Penggang Yin Lidong Li Lin Guo School of Chemistry Environment Beijing University of Aeronautics Astronautics Beijing China |
| Institution: | Enzhong Tan1,2,Penggang Yin1,Lidong Li1,and Lin Guo1 1School of Chemistry and Environment,Beijing University of Aeronautics and Astronautics,Beijing 100191,China 2Department of Mathematics and Physics,Beijing Institute of Technology Petrochemical,Beijing 102617,China |
| Abstract: | The single-molecule surface-enhanced Raman scattering(SERS) spectra of Rhodamine 6G(R6G) in an aqueous environment under non-resonance conditions are studied.Series of spectra are recorded in timemapping mode,and intensity fluctuations of SERS signals and spectral diffusion are observed.The correlations between the presence frequency of SERS spectra and number of hot spots as well as the quantity of molecules in scattering volume are examined thoroughly.The results indicate that only molecules located at ho... |
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