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Journal Article

Fluorescence SNOM of domain structures of LB films containing electron transfer systems

MPS-Authors
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Kirsch,  A. K.
Department of Molecular Biology, MPI for biophysical chemistry, Max Planck Society;

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Moebius,  D.
Research Group of Molecular Organized Systems, MPI for biophysical chemistry, Max Planck Society;

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Jovin,  T. M.
Department of Molecular Biology, MPI for biophysical chemistry, Max Planck Society;

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Citation

Kirsch, A. K., Meyer, C. K., Huesmann, H., Moebius, D., & Jovin, T. M. (1998). Fluorescence SNOM of domain structures of LB films containing electron transfer systems. Ultramicroscopy, 71, 295-302.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0012-FD27-8
Abstract
The morphology of a mixed monolayer consisting of a metal complex and stearic acid on mica was investigated by SNOM. In the topographic shear-force image, round domains of several micrometers diameter protruded several Angstrom from the monolayer surface. The fluorescence pattern revealed by SNOM (excitation at 488 nm, emission at 590 nm) matched the monolayer topography, and a higher fluorescence intensity was detected from the interdomain space. The photo-bleaching kinetics and integrated fluorescence of the different phases of the monolayer film were analyzed, yielding estimates of relative quantum yields and surface densities of the dyad.