Surface-enhanced Raman scattering and DFT theoretical studies on the adsorption behavior of plumbagin on silver nanoparticles

被引：9
|
作者：
Sajan, D. [1 ,3 ]
Kuruvilla, Thomas [1 ]
Laladhas, K. P. [2 ]
Joe, I. Hubert [3 ]
机构：
[1] Bishop Moore Coll, Dept Phys, Alappuzha 690110, Kerala, India
[2] St Stephens Coll, Biomol Res Unit, Dept Zool, Kollam 689695, Kerala, India
[3] Mar Ivanios Coll, Ctr Mol & Biophys Res, Dept Phys, Thiruvananthapuram 695015, Kerala, India
来源：
INDIAN JOURNAL OF PHYSICS | 2011年 / 85卷 / 03期
关键词：
Surface enhanced Raman spectroscopy; IR; Raman; DFT; COLLOIDAL SILVER; ISLAND FILMS; ACID; SERS; SPECTROSCOPY; GOLD; SPECTRA; SOLS;
D O I：
10.1007/s12648-011-0054-2
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The comparative study of normal Raman spectrum with the SERS along with the DFT calculations predicts the adsorption geometry of plumbagin on silver surface. The surface geometry of plumbagin molecule was studied by analysis of the SERS spectra adsorbed on silver colloid surfaces. The large enhancement of in-plane ring stretching and C-H in-plane bending modes in the surface-enhanced Raman scattering spectrum indicates that the molecule is adsorbed on the silver surface in a stand-on orientation of PLBN on a silver surface.
引用
收藏
页码：477 / 484
页数：8
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