| Autor: |
Angel, S. M., Katz, L. F., Archibald, D. D., Honigs, D. E. |
| Zdroj: |
Applied Spectroscopy; March 1989, Vol. 43 Issue: 3 p367-372, 6p |
| Abstrakt: |
Near-infrared (NIR) surface-enhanced Raman spectra (SERS) on copper and gold metal colloids were obtained with a Fourier transform Raman spectrometer using a Nd:YAG laser (1.064 μm) for excitation. Enhanced spectra were observed for pyridine and 3-chloropyridine (CP) on copper colloids and for tris(orthophenanthroline)ruthenium(II), Ru(o-phen)32+, on copper and gold colloids. The copper-colloid surface-enhanced Raman spectra of pyridine and CP were compared with spectra measured for these molecules on copper electrodes. NIR-SERS enhancements on the metal colloids were at least as large as for visible-wavelength excited SERS. Good-quality spectra of Ru(o-phen)32+were obtained at solution concentrations as low as 0.025 mM. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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