Surface-enhanced resonant Raman spectroscopy (SERRS) of single-walled carbon nanotubes absorbed on the Ag-coated anodic aluminum oxide (AAO) surface |
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| Authors: | XY Dou ZP Zhou PH Tan L Song LF Liu XW Zhao SD Luo XQ Yan DF Liu JX Wang Y Gao ZX Zhang HJ Yuan WY Zhou SS Xie |
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| Institution: | aInstitute of Physics, Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, PR China;bGraduate School of the Chinese Academy of Sciences, Beijing 100080, PR China;cState Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors Chinese Academy of Sciences, Beijing 100083, PR China |
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| Abstract: | In this paper, we developed a new kind of substrate, the silver-coated anodic aluminum oxide (AAO), to investigate the characters of surface-enhanced resonant Raman scattering (SERRS) of the dilute single-walled carbon nanotubes. Homogeneous Ag-coated AAO substrate was obtained by decomposing the AgNO3 on the surface of AAO. single-walled carbon nanotubes (SWNTs) were directly grown onto this substrate through floating catalyst chemical vapor deposition method (CVD). SERRS of SWNTs was carried out using several different wavelength lasers. The bands coming from metallic SWNTs were significantly enhanced. The two SERRS mechanisms, the “electromagnetic” and “chemical” mechanism, were mainly responsible for the experiment results. |
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| Keywords: | Single-walled carbon nanotubes (SWNTS) Surface-enhanced resonant raman scattering (SERRS) Anodic aluminum oxide (AAO) |
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