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Theoretical Description of Attosecond X-ray Absorption Spectroscopy of Frenkel Exciton Dynamics
Frenkel excitons are responsible for the transport of light energy in many molecular systems. Coherent electron dynamics govern the initial stage of Frenkel-exciton transfer. Capability to follow coherent exciton dynamics in real time will help to reveal their actual contribution to the efficiency o...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10254768/ https://www.ncbi.nlm.nih.gov/pubmed/37298978 http://dx.doi.org/10.3390/molecules28114502 |
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author | Hansen, Tim Bezriadina, Tatiana Popova-Gorelova, Daria |
author_facet | Hansen, Tim Bezriadina, Tatiana Popova-Gorelova, Daria |
author_sort | Hansen, Tim |
collection | PubMed |
description | Frenkel excitons are responsible for the transport of light energy in many molecular systems. Coherent electron dynamics govern the initial stage of Frenkel-exciton transfer. Capability to follow coherent exciton dynamics in real time will help to reveal their actual contribution to the efficiency of light-harvesting. Attosecond X-ray pulses are the tool with the necessary temporal resolution to resolve pure electronic processes with atomic sensitivity. We describe how attosecond X-ray pulses can probe coherent electronic processes during Frenkel-exciton transport in molecular aggregates. We analyze time-resolved absorption cross section taking broad spectral bandwidth of an attosecond pulse into account. We demonstrate that attosecond X-ray absorption spectra can reveal delocalization degree of coherent exciton transfer dynamics. |
format | Online Article Text |
id | pubmed-10254768 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-102547682023-06-10 Theoretical Description of Attosecond X-ray Absorption Spectroscopy of Frenkel Exciton Dynamics Hansen, Tim Bezriadina, Tatiana Popova-Gorelova, Daria Molecules Article Frenkel excitons are responsible for the transport of light energy in many molecular systems. Coherent electron dynamics govern the initial stage of Frenkel-exciton transfer. Capability to follow coherent exciton dynamics in real time will help to reveal their actual contribution to the efficiency of light-harvesting. Attosecond X-ray pulses are the tool with the necessary temporal resolution to resolve pure electronic processes with atomic sensitivity. We describe how attosecond X-ray pulses can probe coherent electronic processes during Frenkel-exciton transport in molecular aggregates. We analyze time-resolved absorption cross section taking broad spectral bandwidth of an attosecond pulse into account. We demonstrate that attosecond X-ray absorption spectra can reveal delocalization degree of coherent exciton transfer dynamics. MDPI 2023-06-01 /pmc/articles/PMC10254768/ /pubmed/37298978 http://dx.doi.org/10.3390/molecules28114502 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Hansen, Tim Bezriadina, Tatiana Popova-Gorelova, Daria Theoretical Description of Attosecond X-ray Absorption Spectroscopy of Frenkel Exciton Dynamics |
title | Theoretical Description of Attosecond X-ray Absorption Spectroscopy of Frenkel Exciton Dynamics |
title_full | Theoretical Description of Attosecond X-ray Absorption Spectroscopy of Frenkel Exciton Dynamics |
title_fullStr | Theoretical Description of Attosecond X-ray Absorption Spectroscopy of Frenkel Exciton Dynamics |
title_full_unstemmed | Theoretical Description of Attosecond X-ray Absorption Spectroscopy of Frenkel Exciton Dynamics |
title_short | Theoretical Description of Attosecond X-ray Absorption Spectroscopy of Frenkel Exciton Dynamics |
title_sort | theoretical description of attosecond x-ray absorption spectroscopy of frenkel exciton dynamics |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10254768/ https://www.ncbi.nlm.nih.gov/pubmed/37298978 http://dx.doi.org/10.3390/molecules28114502 |
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