EFFECT OF A LANGMUIR-BLODGETT-FILM SPACER ON SURFACE-ENHANCED RAMAN-SCATTERING

被引：0
|
作者：
LI, Y [1 ]
YU, BK [1 ]
WANG, YT [1 ]
ZHANG, WQ [1 ]
LIANG, PH [1 ]
机构：
[1] ACAD SINICA,SHANGHAI INST OPT & FINE MECH,SHANGHAI 201800,PEOPLES R CHINA
来源：
CHINESE PHYSICS | 1992年 / 12卷 / 03期
关键词：
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The electromagnetic enhancement mechanisms of surface-enhanced Raman scattering (SERS) is examined by using Langmuir-Blodgett films as molecule-metal spacers for the first time. In our experiments SERS from pyridine is monitored as a function of spacer thickness. The experimental results in silver films/LB films/pyridine + KCL + H2O systems exhibit that the SERS effect is still present with 5 nm, and no Raman-scattering intensity is observed with 15 nm spacer thickness. The experiments support electromagnetic enhancement mechanisms.
引用
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页码：694 / 700
页数：7
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