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Temperature dependent exciton-exciton annihilation in the LH2 antenna complex

Brueggemann, Ben; Christensson, Niklas LU and Pullerits, Tönu LU (2009) In Chemical Physics 357(1-3). p.140-143
Abstract
Two-color pump-probe measurements of the peripheral light harvesting complex LH2 of Rb.sphaeroides reveal strong temperature dependence of the annihilation rate. The experimental results were modeled via multi-exciton density matrix theory. Based on available literature data we can set an upper limit for the feasible intramolecular internal conversion rate. We show that this also restricts the possible values of the still ill-determined energy of the doubly-excited molecular level of the bacteriochlorophyll, which is responsible for the annihilation process. (C) 2008 Elsevier B.V. All rights reserved.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Internal conversion, Pump-probe spectroscopy, LH2, Exciton-exciton annihilation, Photosynthetic antenna system
in
Chemical Physics
volume
357
issue
1-3
pages
140 - 143
publisher
Elsevier
external identifiers
  • wos:000263851800019
  • scopus:59649096420
ISSN
0301-0104
DOI
10.1016/j.chemphys.2008.12.001
language
English
LU publication?
yes
id
9099357d-1a13-4933-9905-518cf3616c24 (old id 1370745)
date added to LUP
2009-05-08 16:59:33
date last changed
2017-10-08 04:04:22
@article{9099357d-1a13-4933-9905-518cf3616c24,
  abstract     = {Two-color pump-probe measurements of the peripheral light harvesting complex LH2 of Rb.sphaeroides reveal strong temperature dependence of the annihilation rate. The experimental results were modeled via multi-exciton density matrix theory. Based on available literature data we can set an upper limit for the feasible intramolecular internal conversion rate. We show that this also restricts the possible values of the still ill-determined energy of the doubly-excited molecular level of the bacteriochlorophyll, which is responsible for the annihilation process. (C) 2008 Elsevier B.V. All rights reserved.},
  author       = {Brueggemann, Ben and Christensson, Niklas and Pullerits, Tönu},
  issn         = {0301-0104},
  keyword      = {Internal conversion,Pump-probe spectroscopy,LH2,Exciton-exciton annihilation,Photosynthetic antenna system},
  language     = {eng},
  number       = {1-3},
  pages        = {140--143},
  publisher    = {Elsevier},
  series       = {Chemical Physics},
  title        = {Temperature dependent exciton-exciton annihilation in the LH2 antenna complex},
  url          = {http://dx.doi.org/10.1016/j.chemphys.2008.12.001},
  volume       = {357},
  year         = {2009},
}