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Selective probe of the morphology and local vibrations at carbon nanoasperities
http://hdl.handle.net/10069/35676
http://hdl.handle.net/10069/356760bfaf5a4-59e6-4c20-91ef-dfd6d1781f18
名前 / ファイル | ライセンス | アクション |
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JCP136_64505.pdf (953.5 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2015-07-24 | |||||
タイトル | ||||||
タイトル | Selective probe of the morphology and local vibrations at carbon nanoasperities | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Fujimori, Toshihiko
× Fujimori, Toshihiko× Urita, Koki× Tománek, David× Ohba, Tomonori× Moriguchi, Isamu× Endo, Morinobu× Kaneko, Katsumi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We introduce a way to selectively probe local vibration modes at nanostructured asperities such as tips of carbon nanohorns. Our observations benefit from signal amplification in surface-enhanced Raman scattering (SERS) at sites near a silver surface. We observe nanohorn tip vibration modes in the range 200?500 cm?1, which are obscured in regular Raman spectra. Ab initio density functional calculations assign modes in this frequency range to local vibrations at the nanohorn cap resembling the radial breathing mode of fullerenes. Careful interpretation of our SERS spectra indicates presence of caps with 5 or 6 pentagons, which are chemically the most active sites. Changes in the peak intensities and frequencies with time indicate that exposure to laser irradiation may cause structural rearrangements at the cap. |
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書誌情報 |
The Journal of Chemical Physics 巻 136, 号 6, p. 064505, 発行日 2012 |
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出版者 | ||||||
出版者 | American Institute of Physics | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00219606 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1063/1.3682771 | |||||
権利 | ||||||
権利情報 | c 2012 American Institute of Physics. | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | The Journal of Chemical Physics, 136(6), 064505; 2012 |