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Issue 18, 2002
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Imaging thin films of organic molecules with the scanning tunnelling microscope

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Abstract

This article gives a topical review of the application of the scanning tunnelling microscope (STM) to the characterisation of thin films (typically monolayers) of organic molecules on surfaces. Three classes of molecules are considered: “self-assembled” thiol monolayers, macrocycles, e.g. porphyrins and cyclophanes, and passivated nanoparticles. Typically these molecules are deposited onto the surface of, e.g. gold/graphite, from a solution. The STM is shown to be a tool not just for imaging, from the morphology of the film down to the level of individual molecules, but also for molecular manipulation and for electrical measurements. Indeed, an appropriate understanding of the electrical characteristics of the STM measurement is essential for successful imaging of organic (or biological) molecules.

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Publication details

The article was received on 12 Mar 2002, accepted on 16 Jul 2002 and first published on 08 Aug 2002


Article type: Invited Article
DOI: 10.1039/B202462D
Citation: Phys. Chem. Chem. Phys., 2002,4, 4275-4284
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    Imaging thin films of organic molecules with the scanning tunnelling microscope

    R. E. Palmer and Q. Guo, Phys. Chem. Chem. Phys., 2002, 4, 4275
    DOI: 10.1039/B202462D

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