title: Localized surface plasmon resonance investigations of photoswitching in azobenzene-functionalized self-assembled monolayers on Au.
abstract: Localized plasmon resonance (LSPR) spectroscopy, employing gold nanodisk substrates, is applied for studies of photoswitching in self-assembled monolayers of azobenzene-containing thiols. By choosing customized samples in which the sharp LSPR resonance is well separated from the spectral regime of the molecular absorption bands, the photoisomerization kinetics of the adlayer can be monitored in real time. Quantitative data on the photoinduced trans-cis and cis-trans isomerization processes in inert gas atmosphere were obtained as a function of irradiation intensity and temperature, demonstrating the high sensitivity of this technique to such processes in functional adlayers.
authors.affiliation: Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel, Leibnizstraße 19, 24118 Kiel, Germany.
authors.forename: Mathias
authors.initials: M
authors.lastname: Müller
authors.forename: Ulrich
authors.initials: U
authors.lastname: Jung
authors.forename: Viktoria
authors.initials: V
authors.lastname: Gusak
authors.forename: Sandra
authors.initials: S
authors.lastname: Ulrich
authors.forename: Michelle
authors.initials: M
authors.lastname: Holz
authors.forename: Rainer
authors.initials: R
authors.lastname: Herges
authors.forename: Christoph
authors.initials: C
authors.lastname: Langhammer
authors.forename: Olaf
authors.initials: O
authors.lastname: Magnussen