首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Surface‐enhanced Raman spectroscopy of 4‐tert‐butylpyridine on a silver electrode
Authors:Richard Livingstone  John R Lombardi
Abstract:We report the observation of large surface‐enhanced Raman scattering (SERS) (106) for 4‐tert‐butylpyridine molecules adsorbed on a silver electrode surface in an electrochemical cell with electrode potential set at − 0.5 V. A decrease in electrode potential to − 0.3 V was accompanied by a decrease in relative intensities of the vibrational modes. However, there were no changes in vibrational wavenumbers. Comparison of both normal solution Raman and SERS spectra shows very large enhancement of the intensities of a1, a2, and b2 modes at laser excitation of 488 nm. Enhancement of the non‐totally symmetric modes indicates the presence of charge transfer as a contributor to the enhancement. Copyright © 2011 John Wiley & Sons, Ltd.
Keywords:surface‐enhanced Raman scattering (SERS)  charge‐transfer  SERS 4‐tert‐butylpyridine on silver electrode
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号