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Portrait of Tönu Pullerits; Photo: Kennet Ruona

Tönu Pullerits

Professor

Portrait of Tönu Pullerits; Photo: Kennet Ruona

Control of electron transfer pathways in a dye-sensitized solar cell

Author

  • Ben Brüggemann
  • JuanAngel Organero
  • Torbjörn Pascher
  • Tönu Pullerits
  • Arkady Yartsev

Summary, in English

Using shaped laser pulses, we increase the yield of ultrafast electron injection from the sensitizer to TiO2 nanocrystals in the core part of a dye-sensitized solar cell. The temporal structure of the optimized excitation pulse is in clear correlation with nuclear oscillations in the impulsively excited dye molecule. From DFT structure optimization and normal mode analyses we identified the modes which are responsible for the oscillations. The best pulse shape suggests Impulsive Stimulated (anti-Stokes) Raman scattering as a key process of optimization.

Department/s

  • Chemical Physics

Publishing year

2006

Language

English

Publication/Series

Physical Review Letters

Volume

97

Issue

20

Document type

Journal article

Publisher

American Physical Society

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1079-7114