SERS Study of Single-walled Carbon Nanotubes on Silver Films Deposited on Different Substrates

Chem. J. Chinese Universities ›› 2003, Vol. 24 ›› Issue (7): 1285.

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SERS Study of Single-walled Carbon Nanotubes on Silver Films Deposited on Different Substrates

YU Miao¹, LIU Bing-Bing¹, LI Dong-Mei¹, LI Ming-Hui¹, YAO Ming-Guang¹, WANG Lin¹, WANG Hui¹, ZOU Guang-Tian¹, WANG Xu², ZHAO Bing², Sundqvist B.³

1. State Key Laboratory for Superhard Materials, Jilin University, Changchun 130021, China;
2. Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, Jilin University, Changchun 130023, China;
3. Department of Experimental Physics, Ume University, Ume SE-90187, Sweden

Received:2002-09-30 Online:2003-07-24 Published:2003-07-24

Abstract

Abstract: Surface-enhanced Raman Scattering of single-walled carbon nanotubes(SWNTs) on silver films deposited on various substrates, including sapphire, quartz and glass, has been studied systematically. The characteristic features of Gband and Dband have been analyzed and compared with arc discharge and laser ablation samples. Dband is much more sensitive than Gband. The position and the intensity of the Gband in SERS spectra depend on substrates. The peakshift and absolute intensity of Gband on sapphire is obviously larger than that on glass. The contribution of high frequency vibrations to the Dband is also dependent on substrates. Compared to the SWNTs sample with high semiconducting tube concentration, the sample with high metallic tube concentration has a stronger interaction with silver films.

Key words: Single-walled carbon nanotube, Surface-enhanced Raman scattering, Silver film, Substrate

CLC Number:

O641

TrendMD:

YU Miao, LIU Bing-Bing, LI Dong-Mei, LI Ming-Hui, YAO Ming-Guang, WANG Lin, WANG Hui, ZOU Guang-Tian, WANG Xu, ZHAO Bing, Sundqvist B.. SERS Study of Single-walled Carbon Nanotubes on Silver Films Deposited on Different Substrates[J]. Chem. J. Chinese Universities, 2003, 24(7): 1285.

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SERS Study of Single-walled Carbon Nanotubes on Silver Films Deposited on Different Substrates

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