Comparison of Surface-enhanced Raman Scattering Spectra of Two Kinds of Silver Nanoplate Films  

作　　者：TAO Jin-long TANG Bin XU Shu-ping PAN Ling-yun XU Wei-qing 

机构地区：[1]State Key Laboratory of Supramolecular Structure and Materials [2]College of Physics,Jilin University,Changchun 130012,P.R.China

出　　处：《Chemical Research in Chinese Universities》2012年第3期488-492,共5页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China(Nos.91027010,21073073,20903043,20973075,20773045);the Research Fund for the Doctoral Program of Higher Education of China(No.20090061120089);the Open Project of State Key Laboratory for Supramolecular Structure and Materials of China(No.201125)

摘　　要：Surface-enhanced Raman scattering（SERS） spectra of different silver nanoplate selt-assembled tllmS at different excitation wavelengths were fairly compared. Shape conversion from silver nanoprisms to nanodisks on slides was in situ carried out. The SERS spectra of 4-mercaptopyridine（4-MPY） on these anisotropic silver nanopar- ticle self-assembled films present that strong enhancement appeared when the excitation line and the surface plasmon resonance（SPR） band of silver substrate overlapped. In this model, the influence of the crystal planes of silver na- noplates on SERS enhancement could be ignored because the basal planes were nearly unchanged in two kinds of silver nanoplate self-assembled films.Surface-enhanced Raman scattering（SERS） spectra of different silver nanoplate selt-assembled tllmS at different excitation wavelengths were fairly compared. Shape conversion from silver nanoprisms to nanodisks on slides was in situ carried out. The SERS spectra of 4-mercaptopyridine（4-MPY） on these anisotropic silver nanopar- ticle self-assembled films present that strong enhancement appeared when the excitation line and the surface plasmon resonance（SPR） band of silver substrate overlapped. In this model, the influence of the crystal planes of silver na- noplates on SERS enhancement could be ignored because the basal planes were nearly unchanged in two kinds of silver nanoplate self-assembled films.

关 键 词：Surface-enhanced Raman scattering（SERS） Surface plasmon resonance（SPR） Shape-dependant Silvernanoprism Silver nanodisk 

分 类 号：O741.2[理学—晶体学] TG171[金属学及工艺—金属表面处理]