Exciton dynamics in perturbed vibronic molecular aggregates
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- A site specific perturbation of a photo-excited molecular aggregate can lead to a localization of excitonic energy. We investigate this localization dynamics for laser-prepared excited states. Changing the parameters of the electric field significantly influences the exciton localization which offers the possibility for a selective control of this process. This is demonstrated for aggregates possessing a single vibrational degree of freedom per monomer unit. It is shown that the effects identified for the molecular dimer can be generalized toA site specific perturbation of a photo-excited molecular aggregate can lead to a localization of excitonic energy. We investigate this localization dynamics for laser-prepared excited states. Changing the parameters of the electric field significantly influences the exciton localization which offers the possibility for a selective control of this process. This is demonstrated for aggregates possessing a single vibrational degree of freedom per monomer unit. It is shown that the effects identified for the molecular dimer can be generalized to larger aggregates with a high density of vibronic states.…
Autor(en): | Christoph Brüning, Johannes Wehner, Julian Hausner, Michael Wenzel, Volker Engel |
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URN: | urn:nbn:de:bvb:20-opus-126085 |
Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Fakultät für Chemie und Pharmazie / Institut für Physikalische und Theoretische Chemie |
Sprache der Veröffentlichung: | Englisch |
Titel des übergeordneten Werkes / der Zeitschrift (Englisch): | Structural Dynamics |
Erscheinungsjahr: | 2016 |
Band / Jahrgang: | 3 |
Seitenangabe: | 043201 |
Originalveröffentlichung / Quelle: | Structural Dynamics 3, 043201 (2016); doi: 10.1063/1.4936127 |
DOI: | https://doi.org/10.1063/1.4936127 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 5 Naturwissenschaften und Mathematik / 54 Chemie / 541 Physikalische Chemie |
5 Naturwissenschaften und Mathematik / 54 Chemie / 547 Organische Chemie | |
Freie Schlagwort(e): | absorption spectra; excited states; excitons; polymers; wave functions |
Datum der Freischaltung: | 08.02.2016 |
Sammlungen: | Open-Access-Publikationsfonds / Förderzeitraum 2015 |
Lizenz (Deutsch): | CC BY: Creative-Commons-Lizenz: Namensnennung |