Photoinduced Interfacial Electron Transfer and Lateral Charge Transport in Molecular Donor–Acceptor Photovoltaic Systems

Authors

  • Angela Punzi Photochemical Dynamics Group, Institute of Chemical Sciences & Engineering, Ecole Polytechnique Fédéralede Lausanne, EPFL SB ISIC GR-MO, Station 6, CH-1015 Lausanne
  • Jan C. Brauer Photochemical Dynamics Group, Institute of Chemical Sciences & Engineering, Ecole Polytechnique Fédéralede Lausanne, EPFL SB ISIC GR-MO, Station 6, CH-1015 Lausanne
  • Arianna Marchioro Photochemical Dynamics Group, Institute of Chemical Sciences & Engineering, Ecole Polytechnique Fédéralede Lausanne, EPFL SB ISIC GR-MO, Station 6, CH-1015 Lausanne
  • Elham Ghadiri Photochemical Dynamics Group, Institute of Chemical Sciences & Engineering, Ecole Polytechnique Fédéralede Lausanne, EPFL SB ISIC GR-MO, Station 6, CH-1015 Lausanne
  • Jelissa de Jonghe Photochemical Dynamics Group, Institute of Chemical Sciences & Engineering, Ecole Polytechnique Fédéralede Lausanne, EPFL SB ISIC GR-MO, Station 6, CH-1015 Lausanne
  • Jacques-E. Moser Photochemical Dynamics Group, Institute of Chemical Sciences & Engineering, Ecole Polytechnique Fédéralede Lausanne, EPFL SB ISIC GR-MO, Station 6, CH-1015 Lausanne;, Email: je.moser@epfl.ch

DOI:

https://doi.org/10.2533/chimia.2011.353

Keywords:

Dye-sensitized solar cells, Organic photovoltaics, Photoinduced electron transfer, Terahertz spectroscopy, Ultrafast laser spectroscopy

Abstract

Nanostructured liquid|solid and solid|solid bulk heterojunctions designed for the conversion of solar energy offer ideal models for the investigation of light-induced ET dynamics at surfaces. Despite significant study of processes leading to charge generation in third-generation solar cells, a conclusive picture of the photophysics of these photovoltaic converters is still missing. More specifically searched is the link between the molecular structure of the interface and the kinetics of surface photoredox reactions. Fundamental scientific issues in this field are addressed by there search project undertaken in the frame of the NCCR MUST endeavor, an outline of whic his given here.

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Published

2011-05-26