화학공학소재연구정보센터
Chemical Physics Letters, Vol.529, 39-44, 2012
Solvation dynamics of coumarin 153 embedded in AOT plus phenol organogels studied by time-resolved fluorescence spectroscopy
We investigate solvation dynamics of organogel utilizing ps-ns fluorescence spectroscopy. The organogel studied in this Letter comprises bis(2-ethylhexyl) sulfosuccinate (AOT) and p-chlorophenol in the m-xylene solvent, that produce an organogel architecture with self-assembly. Within the organogel, an emitting probe, coumarin 153 (C153), is embedded. We then obtain dynamic response functions of solvation derived from the time-resolved fluorescence spectra of C153. We propose that total energy of the C153-organogel system relaxes with a relaxation time of 3.9 ns, whereas the entire rearrangement of the organogel structure around C153 is achieved with that of 6.1 ns, respectively. (C) 2012 Elsevier B. V. All rights reserved.