SERS study of single-walled carbon nanotubes on silver films deposited on different substrates

In Chinese with English summary.
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 G-band and D-band have been analyzed and compared with arc discharged and laser ablation samples. D-band is much more sensitive than G-band. The position and the intensity of the G-band in SERS spectra depend on substrates. The peak shift and absolute intensity of G-band on sapphire is obviously larger than that on glass. The contribution of high frequency vibrations to the D-band is also deendent on substrates. Compared to the SWNTs samples with a high semiconducting tube concentration, the sample with high metallic tube concentration has a stronger interaction with silver films.

Liu, Bingbing (author)
Li, Dongmei (author)
Li, Minghui (author)
Yao, Mingguang (author)
Wang, Lin (author)
Wang, Hui (author)
Zou, Guangtian (author)
Wang, Xu (author)
Zhao, Bing (author)
Sundqvist, BertilUmeå universitet,Institutionen för fysik(Swepub:umu)besu0001 (author)
Umeå universitetInstitutionen för fysik (creator_code:org_t)

In:Chemical Journal of Chinese Universities / Gao Deng Xue Xiao Hua Xue Xue Bao: Chinese Electronic Periodical Services24:6, s. 1285-12880251-0790

By the author/editor: Yu, Miao; Liu, Bingbing; Li, Dongmei; Li, Minghui; Yao, Mingguang; Wang, Lin; show more...; Wang, Hui; Zou, Guangtian; Wang, Xu; Zhao, Bing; Sundqvist, Berti ...; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Condensed Matter ...

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