4.8 Article

Tip-Enhanced Infrared Imaging with Sub-10 nm Resolution and Hypersensitivity

Journal

JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 11, Issue 5, Pages 1697-1701

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.0c00129

Keywords

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Funding

  1. National Key Research and Development Program of China [2017YFA0206500]
  2. National Key R&D Program of China [2017YFA0700500]
  3. National Natural Science Foundation of China [21327902, 21635004]
  4. Ministry of Science and ICT [2016H1D3A1938071]
  5. National Research Foundation of Korea [2016H1D3A1938071] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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Here we demonstrate sub-10 nm spatial resolution sampling of a volume of similar to 360 molecules with a strong field enhancement at the sample-tip junction by implementing noble metal substrates (Au, Ag, Pt) in photoinduced force microscopy (PiFM). This technique shows the versatility and robustness of PiFM and is promising for application in interfacial studies with hypersensitivity and super spatial resolution.

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