Enhancement of Raman Scattering of 1,4-Benzenedithiol by CdS Nanoparticles Assembled on a Silver Surface

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摘要 CASnanoparticleswereassembledonthesmoothsurfaceofapieceofsilverbyusing1,4-benzenedithiolascouplingmolecules.TheSEMandresonanceRamanspectroscopiccharacterizationsdemonstratethatthenanosizedstructureofCdSwasstillpreserveduponassembly,andatwo-dimensionalstructureofCdSnanoparticleswasformedonthesubstratesurface.TheFT-Ramanspectraindicatethat1,4-benzenedithiolwascoupledbetweenCASnanoparticlesandthesilversurfacewithatiltedorientation.TheRamanscatteringof1,4-benzenedithiolwassubstantiallyenhancedbytheassembledCdSnanoparticles,probablyduetothealterationofthepolarizabilityof1,4-benzenedithiolandtheelectromagneticinteractionbetweenthedipolesoftheCdSparticlewithitsimageinthemetalsubstrate.
机构地区 不详
出版日期 2004年02月12日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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