EXCITATION PROFILES VERSUS POTENTIAL PROFILES IN THE DETERMINATION OF THE CHARGE-TRANSFER CONTRIBUTION TO SERS OF PYRIDINE ON A SILVER ELECTRODE

被引:13
作者
KUDELSKI, A [1 ]
BUKOWSKA, J [1 ]
机构
[1] UNIV WARSAW,DEPT CHEM,PL-02093 WARSAW,POLAND
关键词
D O I
10.1002/jrs.1250261005
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
The relative SERS enhancement factors for pyridine adsorbed on a silver electrode were determined as a function of the laser wavelength and applied potential. The charge-transfer (CT) contribution to the SERS intensity (I), G(CT), was estimated from the excitation profiles (I vs. kv) and compared with the G(CT) values previously obtained from the I vs. electrode potential curves. A critical discussion of the determination of G(CT) with the aid of both methods is given.
引用
收藏
页码:955 / 958
页数:4
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