Chemical structure, aggregate structure and optical properties of adsorbed dye molecules investigated by scanning tunnelling microscopy

We describe in this Letter experiments on three related cyanine dye molecules and their aggregation on silver bromide model surfaces. By using a combination of diffuse reflectance spectroscopy, scanning tunnelling microscopy and molecular modelling, insight has been gained in the relationship betwee...

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Bibliographic Details
Published in:Chemical physics letters 2001-08, Vol.344 (1), p.1-6
Main Authors: Janssens, G., Touhari, F., Gerritsen, J.W., van Kempen, H., Callant, P., Deroover, G., Vandenbroucke, D.
Format: Article
Language:English
Subjects:
Atomic and molecular clusters
Atomic and molecular physics
Exact sciences and technology
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Optical properties of clusters
Photography, photographic instruments and techniques
xerography
Physics
Spectroscopy and geometrical structure of clusters
Studies of special atoms, molecules and their ions
clusters
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Summary:We describe in this Letter experiments on three related cyanine dye molecules and their aggregation on silver bromide model surfaces. By using a combination of diffuse reflectance spectroscopy, scanning tunnelling microscopy and molecular modelling, insight has been gained in the relationship between chemical structure, aggregate structure and optical properties. Our results confirm the three types of aggregate structures (J-, H- and Herringbone) expected from theories on absorption spectra.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(01)00703-5