Surface-enhanced resonance Raman scattering of adsorbates under liquid nitrogen

被引:18
作者
Hinde, RJ [1 ]
Sepaniak, MJ [1 ]
Compton, RN [1 ]
Nordling, J [1 ]
Lavrik, N [1 ]
机构
[1] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA
基金
美国国家科学基金会;
关键词
D O I
10.1016/S0009-2614(01)00323-2
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We compare the room temperature surface-enhanced resonance Raman scattering (SERRS) spectra of three molecules (riboflavin, 1-nitropyrene. and rhodamine 6G) adsorbed on rough silver films with SERRS spectra of the same samples submerged in liquid nitrogen. We find that the spectra obtained in the liquid nitrogen environment exhibit substantially higher signal-to-noise ratios, which we attribute to an increase in the SERRS electromagnetic enhancement factor in the liquid nitrogen environment arising from the dielectric properties of liquid nitrogen. (C) 2001 Published by Elsevier Science B.V.
引用
收藏
页码:167 / 173
页数:7
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