Impact of charge transport on current–voltage characteristics and power-conversion efficiency of organic solar cells

@inproceedings{Wrfel2015ImpactOC,
  title={Impact of charge transport on current–voltage characteristics and power-conversion efficiency of organic solar cells},
  author={Uli W{\"u}rfel and Dieter Neher and Annika Spies and Steve Albrecht},
  booktitle={Nature communications},
  year={2015}
}
This work elucidates the impact of charge transport on the photovoltaic properties of organic solar cells. Here we show that the analysis of current-voltage curves of organic solar cells under illumination with the Shockley equation results in values for ideality factor, photocurrent and parallel resistance, which lack physical meaning. Drift-diffusion simulations for a wide range of charge-carrier mobilities and illumination intensities reveal significant carrier accumulation caused by poor… CONTINUE READING
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