Dynamic Analysis of Adsorption-Desorption Equilibrium of Sublimed Aromatic Molecules Using Polarized Optical Waveguide Spectroscopy

The adsorption-desorption equilibrium of sublimed molecules has been analyzed dynamically by optical waveguide (OWG) spectroscopy. Dynamic change of the transition moment during adsorption behavior was successfully detected using polarized incident light. With this technique, sublimed planer aromati...

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Bibliographic Details
Published in:Analytical Sciences 2017/04/10, Vol.33(4), pp.465-467
Main Authors: TAKAHASHI, Hiromi, FUJITA, Kyoko, OHNO, Hiroyuki
Format: Article
Language:English
Subjects:
Adsorption
adsorption-desorption equilibrium
Air-solid interface
Analytical Chemistry
Chemistry
Desorption
dynamics
optical waveguide spectrometry
Optical waveguides
Solid surfaces
Spectroscopic analysis
Spectroscopy
Spectrum analysis
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Summary:The adsorption-desorption equilibrium of sublimed molecules has been analyzed dynamically by optical waveguide (OWG) spectroscopy. Dynamic change of the transition moment during adsorption behavior was successfully detected using polarized incident light. With this technique, sublimed planer aromatic molecules, such as azobenzene, were revealed to stack parallel to the solid surface at the initial stage followed by adsorption with relatively random orientation.
ISSN:0910-6340
1348-2246
DOI:10.2116/analsci.33.465