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Watching the dynamics of electrons and atoms at work in solar energy conversion

Canton, S. E.; Zhang, X.; Liu, Yizhu LU ; Zhang, J.; Papai, M.; Corani, A.; Smeigh, A. L.; Smolentsev, G.; Attenkofer, K. and Jennings, G., et al. (2015) In Faraday Discussions 185. p.51-68
Abstract
The photochemical reactions performed by transition metal complexes have been proposed as viable routes towards solar energy conversion and storage into other forms that can be conveniently used in our everyday applications. In order to develop efficient materials, it is necessary to identify, characterize and optimize the elementary steps of the entire process on the atomic scale. To this end, we have studied the photoinduced electronic and structural dynamics in two heterobimetallic ruthenium-cobalt dyads, which belong to the large family of donor-bridge-acceptor systems. Using a combination of ultrafast optical and X-ray absorption spectroscopies, we can clock the light-driven electron transfer processes with element and spin... (More)
The photochemical reactions performed by transition metal complexes have been proposed as viable routes towards solar energy conversion and storage into other forms that can be conveniently used in our everyday applications. In order to develop efficient materials, it is necessary to identify, characterize and optimize the elementary steps of the entire process on the atomic scale. To this end, we have studied the photoinduced electronic and structural dynamics in two heterobimetallic ruthenium-cobalt dyads, which belong to the large family of donor-bridge-acceptor systems. Using a combination of ultrafast optical and X-ray absorption spectroscopies, we can clock the light-driven electron transfer processes with element and spin sensitivity. In addition, the changes in local structure around the two metal centers are monitored. These experiments show that the nature of the connecting bridge is decisive for controlling the forward and the backward electron transfer rates, a result supported by quantum chemistry calculations. More generally, this work illustrates how ultrafast optical and X-ray (Less)
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type
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publication status
published
subject
in
Faraday Discussions
volume
185
pages
51 - 68
publisher
Royal Society of Chemistry
external identifiers
  • wos:000366909400003
  • scopus:84952326832
ISSN
1364-5498
DOI
10.1039/c5fd00084j
language
English
LU publication?
yes
id
07df7749-82ca-4aef-bc4e-ab4288aec116 (old id 8548728)
date added to LUP
2016-01-29 09:03:10
date last changed
2017-09-03 03:19:19
@article{07df7749-82ca-4aef-bc4e-ab4288aec116,
  abstract     = {The photochemical reactions performed by transition metal complexes have been proposed as viable routes towards solar energy conversion and storage into other forms that can be conveniently used in our everyday applications. In order to develop efficient materials, it is necessary to identify, characterize and optimize the elementary steps of the entire process on the atomic scale. To this end, we have studied the photoinduced electronic and structural dynamics in two heterobimetallic ruthenium-cobalt dyads, which belong to the large family of donor-bridge-acceptor systems. Using a combination of ultrafast optical and X-ray absorption spectroscopies, we can clock the light-driven electron transfer processes with element and spin sensitivity. In addition, the changes in local structure around the two metal centers are monitored. These experiments show that the nature of the connecting bridge is decisive for controlling the forward and the backward electron transfer rates, a result supported by quantum chemistry calculations. More generally, this work illustrates how ultrafast optical and X-ray},
  author       = {Canton, S. E. and Zhang, X. and Liu, Yizhu and Zhang, J. and Papai, M. and Corani, A. and Smeigh, A. L. and Smolentsev, G. and Attenkofer, K. and Jennings, G. and Kurtz, C. A. and Li, F. and Harlang, Tobias and Vithanage, Dimali and Chabera, Pavel and Bordage, A. and Sun, L. and Ott, S. and Wärnmark, Kenneth and Sundström, Villy},
  issn         = {1364-5498},
  language     = {eng},
  pages        = {51--68},
  publisher    = {Royal Society of Chemistry},
  series       = {Faraday Discussions},
  title        = {Watching the dynamics of electrons and atoms at work in solar energy conversion},
  url          = {http://dx.doi.org/10.1039/c5fd00084j},
  volume       = {185},
  year         = {2015},
}