Hoven, Gijsbert ten (2022) 2DEV Investigations of Dimers. Master's Thesis / Essay, Physics.
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Abstract
Light harvesting in photosynthetic systems is one of the fundamental processes of life on Earth and is not understood fully. Not only is this mechanism worth studying for its own sake, under- standing it might also inspire industrial light harvesting systems. In recent decades, investigations using multidimensional spectroscopy, notably 2DES and 2DIR, have improved our understanding of common light harvesting molecular systems. An essential process in light harvesting is energy (exciton) transport, which recent works have demonstrated involves vibronic coupling types. More- over, vibronic couplings are potentially important in other systems such as organic photovoltaics and organic thermo-electrics. In recent years a new 2D spectroscopy, 2DEV, has emerged that combines infrared and visible wavelength ranges, which is especially suitable for investigating vibronic activity, as it directly probes couplings between vibrations and electronic states and is therefore better suited than e.g. 2DES for studying such interactions. This work aims to contribute to the theoretical underpin- nings needed to interpret 2DEV experiment results by verifying recent theoretical investigations and expanding thereon. Specifically, a homo- and heterodimer that feature Franck-Condon and/or Herzberg-Teller vibronic couplings are investigated by simulating 2DEV spectra. It is found that the different dimers have their unique features in the 2DEV spectra, which can be understood to some degree. ...
| Item Type: | Thesis (Master's Thesis / Essay) |
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| Supervisor name: | Jansen, T.L.C. |
| Degree programme: | Physics |
| Thesis type: | Master's Thesis / Essay |
| Language: | English |
| Date Deposited: | 30 Sep 2022 09:42 |
| Last Modified: | 30 Sep 2022 09:42 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/28786 |
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