Vibronic and Vibrational Coherences in Two-Dimensional Electronic Spectra of Supramolecular J-Aggregates
- Author(s)
- Franz Milota, Valentyn I. Prokhorenko, Tomas Mancal, Hans von Berlepsch, Oliver Bixner, Harald F. Kauffmann, Juergen Hauer
- Abstract
In J-aggregates of cyanine dyes, closely packed molecules form mesoscopic tubes with nanometer-diameter and micrometer-length. Their efficient energy transfer pathways make them suitable candidates for artificial light harvesting systems. This great potential calls for an in-depth spectroscopic analysis of the underlying energy deactivation network and coherence dynamics. We use two-dimensional electronic spectroscopy with sub-10 fs laser pulses in combination with two-dimensional decay-associated spectra analysis to describe the population flow within the aggregate. Based on the analysis of Fourier-transform amplitude maps, we distinguish between vibrational or vibronic coherence dynamics as the origin of pronounced oscillations in our two-dimensional electronic spectra.
- Organisation(s)
- Electronic Properties of Materials
- External organisation(s)
- Technische Universität Wien, Max Planck Institute for the Structure and Dynamics of Matter, Charles University Prague, Freie Universität Berlin (FU), Universität für Bodenkultur Wien
- Journal
- The Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory
- Volume
- 117
- Pages
- 6007-6014
- No. of pages
- 8
- ISSN
- 1089-5639
- DOI
- https://doi.org/10.1021/jp3119605
- Publication date
- 07-2013
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 1030 Physics, Astronomy
- Keywords
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/vibronic-and-vibrational-coherences-in-twodimensional-electronic-spectra-of-supramolecular-jaggregates(11c706c8-8665-47b3-a9e0-c9eaa8c219b0).html