Determination of enhancement factors for surface-enhanced FT-Raman spectroscopy on gold and silver surfaces

被引：0
作者：
Ibrahim, A
Oldham, PB
Stokes, DL
Vo-Dinh, T
机构：
[1] MISSISSIPPI STATE UNIV, DEPT CHEM, MISSISSIPPI STATE, MS 39762 USA
[2] OAK RIDGE NATL LAB, HLTH SCI RES DIV, ADV MONITORING DEV GRP, OAK RIDGE, TN 37381 USA
来源：
JOURNAL OF RAMAN SPECTROSCOPY | 1996年 / 27卷 / 12期
关键词：
D O I：
暂无
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
The combination of surface-enhanced Raman spectroscopy (SERS) with near-infrared (NIR) excitation should be of considerable benefit for trace detection of biological and environmental samples. Enhancement factors for SERS of p-aminobenzoic acid (PABA) on silver/alumina, silver island, gold/alumina and gold island surfaces were determined using unenhanced FT-Raman spectra of PABA on glass and glass/alumina surfaces as references. The silver/alumina substrate provided the greatest enhancement factor, followed by silver island, gold/alumina and gold island substrates, respectively. An enhancement factor in excess of 10(6) for PABA on a silver/alumina substrate compares favourably with literature reports of similar systems at shorter wavelengths.
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页码：887 / 891
页数：5
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