Die u:cris Detailansicht:
Vibronic and Vibrational Coherences in Two-Dimensional Electronic Spectra of Supramolecular J-Aggregates
- Autor(en)
- Franz Milota, Valentyn I. Prokhorenko, Tomas Mancal, Hans von Berlepsch, Oliver Bixner, Harald F. Kauffmann, Juergen Hauer
- Abstrakt
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(en)
- Elektronische Materialeigenschaften
- Externe Organisation(en)
- Technische Universität Wien, Max-Planck-Institut für Struktur und Dynamik der Materie, 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
- Band
- 117
- Seiten
- 6007-6014
- Anzahl der Seiten
- 8
- ISSN
- 1089-5639
- DOI
- https://doi.org/10.1021/jp3119605
- Publikationsdatum
- 07-2013
- Peer-reviewed
- Ja
- ÖFOS 2012
- 1030 Physik, Astronomie
- Schlagwörter
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/11c706c8-8665-47b3-a9e0-c9eaa8c219b0