Unreacted PbI2 as a Double-Edged Sword for Enhancing the Performance of Perovskite Solar Cells.

@article{Jacobsson2016UnreactedPA,
  title={Unreacted PbI2 as a Double-Edged Sword for Enhancing the Performance of Perovskite Solar Cells.},
  author={T Jesper Jacobsson and Juan-Pablo Correa-Baena and Elham Halvani Anaraki and Bertrand Philippe and Samuel D. Stranks and Marine E. F. Bouduban and Wolfgang Tress and Kurt Schenk and Jo{\"e}l Teuscher and Jacques-E Moser and Hak̊an Rensmo and Anders Hagfeldt},
  journal={Journal of the American Chemical Society},
  year={2016},
  volume={138 32},
  pages={
          10331-43
        }
}
Lead halide perovskites have over the past few years attracted considerable interest as photo absorbers in PV applications with record efficiencies now reaching 22%. It has recently been found that not only the composition but also the precise stoichiometry is important for the device performance. Recent reports have, for example, demonstrated small amount of PbI2 in the perovskite films to be beneficial for the overall performance of both the standard perovskite, CH3NH3PbI3, as well as for the… CONTINUE READING

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