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Ultrafast coherence transfer in DNA-templated silver nanoclusters

Thyrhaug, Erling LU ; Bogh, Sidsel Ammitzbøll; Carro-Temboury, Miguel R.; Madsen, Charlotte Stahl; Vosch, Tom and Zigmantas, Donatas LU (2017) In Nature Communications 8.
Abstract

DNA-templated silver nanoclusters of a few tens of atoms or less have come into prominence over the last several years due to very strong absorption and efficient emission. Applications in microscopy and sensing have already been realized, however little is known about the excited-state structure and dynamics in these clusters. Here we report on a multidimensional spectroscopy investigation of the energy-level structure and the early-time relaxation cascade, which eventually results in the population of an emitting state. We find that the ultrafast intramolecular relaxation is strongly coupled to a specific vibrational mode, resulting in the concerted transfer of population and coherence between excited states on a sub-100 fs... (More)

DNA-templated silver nanoclusters of a few tens of atoms or less have come into prominence over the last several years due to very strong absorption and efficient emission. Applications in microscopy and sensing have already been realized, however little is known about the excited-state structure and dynamics in these clusters. Here we report on a multidimensional spectroscopy investigation of the energy-level structure and the early-time relaxation cascade, which eventually results in the population of an emitting state. We find that the ultrafast intramolecular relaxation is strongly coupled to a specific vibrational mode, resulting in the concerted transfer of population and coherence between excited states on a sub-100 fs timescale.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nature Communications
volume
8
publisher
Nature Publishing Group
external identifiers
  • scopus:85020006548
  • wos:000402047000001
ISSN
2041-1723
DOI
10.1038/ncomms15577
language
English
LU publication?
yes
id
6a36f3a6-73c3-4459-a622-96bc9747212c
date added to LUP
2017-06-28 09:35:27
date last changed
2018-09-02 04:39:11
@article{6a36f3a6-73c3-4459-a622-96bc9747212c,
  abstract     = {<p>DNA-templated silver nanoclusters of a few tens of atoms or less have come into prominence over the last several years due to very strong absorption and efficient emission. Applications in microscopy and sensing have already been realized, however little is known about the excited-state structure and dynamics in these clusters. Here we report on a multidimensional spectroscopy investigation of the energy-level structure and the early-time relaxation cascade, which eventually results in the population of an emitting state. We find that the ultrafast intramolecular relaxation is strongly coupled to a specific vibrational mode, resulting in the concerted transfer of population and coherence between excited states on a sub-100 fs timescale.</p>},
  articleno    = {15577},
  author       = {Thyrhaug, Erling and Bogh, Sidsel Ammitzbøll and Carro-Temboury, Miguel R. and Madsen, Charlotte Stahl and Vosch, Tom and Zigmantas, Donatas},
  issn         = {2041-1723},
  language     = {eng},
  month        = {05},
  publisher    = {Nature Publishing Group},
  series       = {Nature Communications},
  title        = {Ultrafast coherence transfer in DNA-templated silver nanoclusters},
  url          = {http://dx.doi.org/10.1038/ncomms15577},
  volume       = {8},
  year         = {2017},
}