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Journal Article

Quantitative scanning tunneling microscopy and scanning force microscopy of organic materials


Butt,  Hans-Jürgen
Transport Proteins Group, Max Planck Institute of Biophysics, Max Planck Society;


Guckenberger,  Reinhard
Baumeister, Wolfgang / Molecular Structural Biology, Max Planck Institute of Biochemistry, Max Planck Society;


Rabe,  Jürgen P.
MPI for Polymer Research, Max Planck Society;

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Butt, H.-J., Guckenberger, R., & Rabe, J. P. (1992). Quantitative scanning tunneling microscopy and scanning force microscopy of organic materials. Ultramicroscopy, 46(1-4), 375-393. doi:10.1016/0304-3991(92)90025-F.

Cite as: https://hdl.handle.net/21.11116/0000-0008-32B5-3
The capabilities and limitations of scanning tunneling microscopy and scanning force microscopy for a quantitative characterization of organic materials are discussed. Resolution in space and time, as well as measurements of electronic properties and forces are analyzed for three classes of systems, i.e. (i) molecular monolayers on atomically flat conductive supports, which are thin enough to allow electron tunneling through them, (ii) protein layers with a metallic overcoat, and (iii) native proteins or other macromolecules on electrically insulating substrates. In particular, we suggest criteria to define lateral resolution, which are not exclusively based on the ratio of signal to noise, as usually exploited in transmission electron microscopy.