Bulletin of the Korean Chemical Society

  • 제33권5호
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  • Pages.1748-1752
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  • 2012
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  • 0253-2964(pISSN)
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  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Tip-Enhanced Raman Scattering with a Nanoparticle-Functionalized Probe

  • 투고 : 2012.01.20
  • 심사 : 2012.02.27
  • 발행 : 2012.05.20
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초록

We carried out the tip-enhanced Raman scattering (TERS) with a tip that is functionalized with a Aunanoparticle (AuNP, with a diameter of 250 nm). The AuNP tip is fabricated by a direct mechanical pickup of a AuNP from a flat substrate, and the TERS signal from the AuNP tip - organic monolayer - Au thin film (thickness of 10 nm) is recorded. We find that such a AuNP-tip interacting with a thin film routinely yields signal enhancement larger than ${\sim}10^4$, which is sufficient not only for local (with detection area of ~200 $nm^2$) Raman spectroscopy, but also the nanometric imaging of organic monolayers within a reasonable acquisition time (~20 minutes/image).

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참고문헌

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  2. Nanomanipulation and controlled self-assembly of metal nanoparticles and nanocrystals for plasmonics vol.45, pp.20, 2016, https://doi.org/10.1039/C6CS00450D
  3. Nanoscale Raman Imaging with Nanogold-Topped AFM Probes Fabricated by Area-Selective Electroless Deposition vol.165, pp.14, 2018, https://doi.org/10.1149/2.0561814jes
  4. Observation of propagating surface plasmon polaritons by using functionalized tip‐enhanced Raman spectroscopy vol.51, pp.8, 2012, https://doi.org/10.1002/jrs.5855