Mapping of exciton-exciton annihilation in a molecular dimer via fifth-order femtosecond two-dimensional spectroscopy
Please always quote using this URN: urn:nbn:de:bvb:20-opus-178420
- We present a theoretical study on exciton–exciton annihilation (EEA) in a molecular dimer. This process is monitored using a fifth-order coherent two-dimensional (2D) spectroscopy as was recently proposed by Dostál et al. [Nat. Commun. 9, 2466 (2018)]. Using an electronic three-level system for each monomer, we analyze the different paths which contribute to the 2D spectrum. The spectrum is determined by two entangled relaxation processes, namely, the EEA and the direct relaxation of higher lying excited states. It is shown that the change ofWe present a theoretical study on exciton–exciton annihilation (EEA) in a molecular dimer. This process is monitored using a fifth-order coherent two-dimensional (2D) spectroscopy as was recently proposed by Dostál et al. [Nat. Commun. 9, 2466 (2018)]. Using an electronic three-level system for each monomer, we analyze the different paths which contribute to the 2D spectrum. The spectrum is determined by two entangled relaxation processes, namely, the EEA and the direct relaxation of higher lying excited states. It is shown that the change of the spectrum as a function of a pulse delay can be linked directly to the presence of the EEA process.…
Author: | Jasmin Süß, Johannes G. Wehner, Jakub Dostál, Volker Engel, Tobias Brixner |
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URN: | urn:nbn:de:bvb:20-opus-178420 |
Document Type: | Journal article |
Faculties: | Fakultät für Chemie und Pharmazie / Institut für Physikalische und Theoretische Chemie |
Language: | English |
Parent Title (English): | Journal of Physical Chemistry Letters |
Year of Completion: | 2019 |
Volume: | 150 |
Issue: | 10 |
Pagenumber: | 104304 |
Source: | Journal of Chemical Physics 150, 104304 (2019); https://doi.org/10.1063/1.5086151 |
URL: | https://aip.scitation.org/doi/full/10.1063/1.5086151 |
DOI: | https://doi.org/10.1063/1.5086151 |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 541 Physikalische Chemie |
GND Keyword: | Exziton; Spektroskopie |
Tag: | 2Dimensionale Spektroskopie; EEA exciton; exciton-exciton |
Release Date: | 2020/03/16 |
Embargo Date: | 2020/03/13 |
EU-Project number / Contract (GA) number: | 614623 |
OpenAIRE: | OpenAIRE |
Note: | This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in J. Süß et al., J. Chem. Phys. 150, 104304 (2019); https://doi.org/10.1063/1.5086151 and may be found at https://doi.org/10.1063/1.5086151. |
Licence (German): | Deutsches Urheberrecht |