SURFACE-ENHANCED VIBRATIONAL RAMAN-SPECTROSCOPY OF C-60 AND C-70 ON ROUGH SILVER SURFACES

被引：49

作者：

AKERS, KL ^{[1
]}

COUSINS, LM ^{[1
]}

MOSKOVITS, M ^{[1
]}

机构：

[1] UNIV TORONTO,ONTARIO LASER & LIGHTWAVE RES CTR,TORONTO M5S 1A1,ONTARIO,CANADA

来源：

CHEMICAL PHYSICS LETTERS | 1992年 / 190卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0009-2614(92)85199-K

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：

The observation of the surface-enhanced vibrational Raman spectra of vapor-deposited C60 and C70 on rough silver films is reported. Both near-monolayer and multilayer films of pure C60 and of C60/C70 mixtures are studied. The films are obtained by evaporating fullerene samples at temperatures of 683-875 K in ultra-high vacuum. Mixed fullerene samples were greatly enriched in C70 by making use of the slightly different vapor pressures of the two major components at the low end of this temperature range. The spectra contain all the lines of the normal Raman spectra as well as several additional lines caused by a reduction in the stringency of the normal Raman selection rules. These results demonstrate the potential of this technique for detecting small quantities of fullerenes and obtaining their vibrational spectra.

引用

页码：614 / 620

页数：7

共 28 条

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