Nongeminate Recombination in Planar and Bulk Heterojunction Organic Solar Cells

  title={Nongeminate Recombination in Planar and Bulk Heterojunction Organic Solar Cells},
  author={Alexander Foertig and Alexander Wagenpfahl and Thiemo Gerbich and David Cheyns and Vladimir Dyakonov and Carsten Deibel},
  journal={Advanced Energy Materials},
Nongeminate recombination in organic solar cells based on copper phthalocyanine (CuPc) and C60 is investigated. Two device architectures, the planar heterojunction (PHJ) and the bulk heterojunction (BHJ), are directly compared in view of differences in charge carrier decay dynamics. A combination of transient photovoltage (TPV) experiments, yielding the small perturbation charge carrier lifetime, and charge extraction measurements, providing the charge carrier density is applied. In organic… Expand

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