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Title: Local properties of adsorption sites probed by the emission of fluorophores of different size and shape
Authors: Imans, F ×
Viaene, Lucien
Van der Auweraer, Mark
DeSchryver, FC #
Issue Date: Jan-1996
Publisher: Elsevier science bv
Series Title: Chemical Physics Letters vol:262 issue:5 pages:583-588
Abstract: The photophysics of aromatic amines, having a polar excited state, adsorbed on silica is discussed based on the results obtained by stationary and time-resolved fluorescence experiments. The stationary results suggest a correlation between the molecular shape and size and the effective polarity of the adsorption site. Time-resolved fluorescence emission experiments carried out at different emission wavelengths indicate non-exponential fluorescence decays of the adsorbed molecules. These decays could be analysed globally assuming a Gaussian distribution of decay rates. Using the standard deviation of the decay rate as a measure of the width of the distribution of the local properties of the adsorption sites, these data substantiate the interpretation of the stationary fluorescence experiments.
URI: 
ISSN: 0009-2614
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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