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Volumn 84, Issue 14, 2004, Pages 2697-2699

True molecular resolution in tapping-mode atomic force microscopy with high-resolution probes

Author keywords

[No Author keywords available]

Indexed keywords

CRYSTAL SURFACE; MOLECULAR-SIZE DEFECTS; SURFACE CONTAMINATION; TAPPING MODE (TP);

EID: 2342624530     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.1697629     Document Type: Article
Times cited : (95)

References (22)
  • 14
    • 2342511836 scopus 로고    scopus 로고
    • note
    • A tip apex of etched Si probes used in tapping mode is typically in the 10-20 nm range. The resolution in tapping mode images is higher than the apex size that is most likely related to the fact that tip-sample contact area depends not only on the tip size but also on imaging force and mechanical properties of the sample and the tip.
  • 18
    • 2342585113 scopus 로고    scopus 로고
    • note
    • 2O. Similar conditions are used for a growth of diamond-like coatings. The probes were visualized with JEOL EM 100CX transmission electron microscope (JEOL, Japan) under accelerating voltage of 80 kV.
  • 19
    • 84862348259 scopus 로고    scopus 로고
    • www.spmtips.com/hires/rotaxane/;www.spmtips.com/hires/rms/
    • www.spmtips.com/hires/;www.spmtips.com/hires/rotaxane/;www.spmtips.com/ hires/rms/
  • 21
    • 2342559566 scopus 로고    scopus 로고
    • note
    • Tapping mode measurements were performed with a Dimension 5000 (Veeco Instruments) scanning probe microscope. We applied Si probes (NanoDevices/Veeco Instruments) with the cantilevers of 225 μm in length and 1 N/m in stiffness. Carbon probes were grown at the apex of the etched Si probes (MikroMasch Eesti, Tallinn, Estonia) with the cantilevers of 125 μm in length and 5 N/m in stiffness. In our measurements with probes of both kinds, free-oscillating amplitudes were chosen around 0.3 V. Thiscorresponds to the oscillation amplitudes of ∼8 nm for the regular probe and ∼4 nm for the new probe. Imaging was performed in light tapping, i.e., with a set-point amplitude close to the free-oscillating amplitude. Scanning rate was in the 1.5-3.5 Hz range. A sewing engagement procedure was applied to avoid the tip damage during the probe engagement into a sample.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.