書誌事項
- タイトル別名
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- Critical Importance of a Gap Mode in Surface Enhanced Raman Scattering
- ヒョウメン ゾウキョウ ラマン サンラン ニ オケル ギャップモード ノ ジュウヨウセイ
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A gap mode in surface enhanced Raman scattering (SERS) can provide single molecule sensitivity and spatial resolution of a few nanometers. To establish a gap mode Raman spectroscopy, we investigated three distinct geometries of a flocculate of silver nanoparticles (AgNP), a gap mode with a metal substrate/molecule/metal nanoparticle sample under an external, and attenuated total reflection (ATR) geometry. We succeeded to elucidate adsorbed state of different thiol molecules in flocculates of AgNPs as well as counter ions in solutions. A large number of AgNPs were immobilized on Ag films via various thiol molecules using van der Waals and electrostatic interaction, which provided enormous SERS enhancement of 108-109 at a nanogap. A propagating surface plasmon (PSP) combined with a gap mode under ATR geometry yielded significantly larger SERS enhancement than that under an external geometry.
収録刊行物
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- 表面科学
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表面科学 35 (7), 345-350, 2014
公益社団法人 日本表面科学会
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詳細情報 詳細情報について
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- CRID
- 1390001206459676800
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- NII論文ID
- 130004486906
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- NII書誌ID
- AN00334149
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- ISSN
- 18814743
- 03885321
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- NDL書誌ID
- 025638565
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 使用不可