Publikation:

Photodesorption of O2 from Ag-2 : A time-resolved study of Ag2O-2

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appliedphysicsA872007.pdf
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2007

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Niemietz, Marco
Engelke, Markus
Kim, Young Dok

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http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-86022
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https://doi.org/10.1007/s00339-007-3937-5
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Applied Physics / A. 2007, 87(4), pp. 615-619. Available under: doi: 10.1007/s00339-007-3937-5

Zusammenfassung

We present time-resolved photoelectron spectra of mass-selected Ag2O2 anions. The anions are photoexcited by photons with an energy of 3.1 eV, and photoelectron spectra of the excited species Ag2O-2* and the subsequently appearing fragments are recorded using a probe laser pulse with a photon energy of 1.5 eV. The excited state of Ag2O-2 has a short lifetime of 130 fs±70 fs only and decays by direct photodesorption of O2. The data demonstrate the ability of time-resolved photoelectron spectroscopy (TR-PES) to observe the breaking of chemical bonds if the decay process of the excited state is direct (non-thermal desorption). The data are compared to recent results of a NeNePo experiment on the same system.

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530 Physik

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ISO 690NIEMIETZ, Marco, Markus ENGELKE, Young Dok KIM, Gerd GANTEFÖR, 2007. Photodesorption of O2 from Ag-2 : A time-resolved study of Ag2O-2. In: Applied Physics / A. 2007, 87(4), pp. 615-619. Available under: doi: 10.1007/s00339-007-3937-5
BibTex
@article{Niemietz2007Photo-8941,
  year={2007},
  doi={10.1007/s00339-007-3937-5},
  title={Photodesorption of O2 from Ag-2 : A time-resolved study of Ag2O-2},
  number={4},
  volume={87},
  journal={Applied Physics / A},
  pages={615--619},
  author={Niemietz, Marco and Engelke, Markus and Kim, Young Dok and Ganteför, Gerd}
}
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