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  Primary Charge Separation in the Photosystem II Reaction Center Revealed by a Global Analysis of the Two-dimensional Electronic Spectra

Duan, H.-G., Prokhorenko, V., Wientjes, E., Croce, R., Thorwart, M., & Miller, R. J. D. (2017). Primary Charge Separation in the Photosystem II Reaction Center Revealed by a Global Analysis of the Two-dimensional Electronic Spectra. Scientific Reports, 7: 12347. doi:10.1038/s41598-017-12564-4.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-002E-7F9F-1 Versions-Permalink: https://hdl.handle.net/21.11116/0000-0001-EAD0-C
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This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Cre- ative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not per- mitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
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https://dx.doi.org/10.1038/s41598-017-12564-4 (Verlagsversion)
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 Urheber:
Duan, Hong-Guang1, 2, 3, Autor           
Prokhorenko, Valentyn1, Autor           
Wientjes, Emilie 4, Autor
Croce, Roberta4, Autor
Thorwart, Michael2, 3, Autor
Miller, R. J. Dwayne1, 3, 5, Autor           
Affiliations:
1Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938288              
2I. Institut für Theoretische Physik, Universität Hamburg, Jungiusstraße 9, 20355, Hamburg, Germany, ou_persistent22              
3The Hamburg Center for Ultrafast Imaging, Luruper Chaussee 149, 22761, Hamburg, Germany, ou_persistent22              
4Department of Physics and Astronomy and Institute for Lasers, Life and Biophotonics, Faculty of Sciences, VU University Amsterdam, De Boelelaan, 1081, 1081, HV, Amsterdam, The Netherlands, ou_persistent22              
5The Departments of Chemistry and Physics, University of Toronto, 80 St. George Street, Toronto, M5S 3H6, Canada, ou_persistent22              

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Schlagwörter: Chemical physics; Light harvesting
 Zusammenfassung: The transfer of electronic charge in the reaction center of Photosystem II is one of the key building blocks of the conversion of sunlight energy into chemical energy within the cascade of the photosynthetic reactions. Since the charge transfer dynamics is mixed with the energy transfer dynamics, an effective tool for the direct resolution of charge separation in the reaction center is still missing. Here, we use experimental two-dimensional optical photon echo spectroscopy in combination with the theoretical calculation to resolve its signature. A global fitting analysis allows us to clearly and directly identify a decay pathway associated to the primary charge separation. In particular, it can be distinguished from regular energy transfer and occurs on a time scale of 1.5 ps under ambient conditions. This technique provides a general tool to identify charge separation signatures from the energy transport in two-dimensional optical spectroscopy.

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Sprache(n): eng - English
 Datum: 2017-03-292017-09-122017-09-27
 Publikationsstatus: Online veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1038/s41598-017-12564-4
 Art des Abschluß: -

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Titel: Scientific Reports
  Kurztitel : Sci. Rep.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: London, UK : Nature Publishing Group
Seiten: - Band / Heft: 7 Artikelnummer: 12347 Start- / Endseite: - Identifikator: ISSN: 2045-2322
CoNE: https://pure.mpg.de/cone/journals/resource/2045-2322