Two-Dimensional Electronic Spectroscopy Reveals Ultrafast Energy Diffusion in Chlorosomes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10128532" target="_blank" >RIV/00216208:11320/12:10128532 - isvavai.cz</a>
Alternative codes found
RIV/60076658:12310/12:43883532
Result on the web
<a href="http://dx.doi.org/10.1021/ja3025627" target="_blank" >http://dx.doi.org/10.1021/ja3025627</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/ja3025627" target="_blank" >10.1021/ja3025627</a>
Alternative languages
Result language
angličtina
Original language name
Two-Dimensional Electronic Spectroscopy Reveals Ultrafast Energy Diffusion in Chlorosomes
Original language description
Chlorosomes are light-harvesting antennae that enable exceptionally efficient light energy capture and excitation transfer. They are found in certain photosynthetic bacteria, some of which live in extremely low-light environments. In this work, chlorosomes from the green sulfur bacterium Chlorobaculum tepidum were studied by coherent electronic two-dimensional (2D) spectroscopy. Previously uncharacterized ultrafast energy transfer dynamics were followed, appearing as evolution of the 2D spectral line-shape during the first 200 fs after excitation. Observed initial energy flow through the chlorosome is well explained by effective exciton diffusion on a sub-100 fs time scale, which assures efficiency and robustness of the process. The ultrafast incoherent diffusion-like behavior of the excitons points to a disordered energy landscape in the chlorosome, which leads to a rapid loss of excitonic coherences between its structural subunits. This disorder prevents observation of excitonic cohe
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BO - Biophysics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA206%2F09%2F0375" target="_blank" >GA206/09/0375: Self-assembling light-harvesting structures based on chlorosomes of green photosynthetic bacteria</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of the American Chemical Society
ISSN
0002-7863
e-ISSN
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Volume of the periodical
134
Issue of the periodical within the volume
28
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
11611-11617
UT code for WoS article
000306457900050
EID of the result in the Scopus database
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