Dynamics of energy transfer in the LH2 antenna complex of the purple bacterium Rhodobacter sphaeroides

Tomáš Polívka, Jennifer L. Herek, Tõnu Pullerits, Mats Dahlbom, C. Neil Hunter, Villy Sundström

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

Transient absorption spectra and kinetics are used for detailed studies of energy transfer dynamics within the B850 ring of the LH2 antenna of the purple bacterium Rb. sphaeroides. The initial exciton relaxation was found to occur within the first 100 fs and no temperature dependence of this process was observed. Trnsient abcorption spectra of the LH2 antenna complex at 6 K revealed a new spectral band around 880 nm as a result of energy distribution of the lowest exciton states of B850 rings at cryogenic temperatures.

Original languageEnglish
Title of host publicationUltrafast Phenomena XI
Subtitle of host publicationProceedings of the 11th International Conference, Garmisch-Partenkirchen, Germany, July 12–17, 1998
EditorsThomas Elsaesser, James G. Fujimoto, Douwe A. Wiersma, Wolfgang Zinth
PublisherSpringer
Pages669-671
Number of pages3
Edition1
ISBN (Electronic)978-3-642-72289-9
ISBN (Print)978-3-642-72291-2
DOIs
Publication statusPublished - 1998

Publication series

NameSpringer Series in Chemical Physics
PublisherSpringer
Volume63
ISSN (Print)0172-6218
ISSN (Electronic)2364-9003

Subject classification (UKÄ)

  • Atom and Molecular Physics and Optics

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