@article{doi:10.1021/acs.jpclett.7b00415,
  abstract = { The analysis of perovskite solar cells by impedance spectroscopy has provided a rich variety of behaviors that demand adequate interpretation. Two main features have been reported: First, different impedance spectral arcs vary in combination; second, inductive loops and negative capacitance characteristics appear as an intrinsic property of the current configuration of perovskite solar cells. Here we adopt a previously developed surface polarization model based on the assumption of large electric and ionic charge accumulation at the external contact interface. Just from the equations of the model, the impedance spectroscopy response is calculated and explains the mentioned general features. The inductance element in the equivalent circuit is the result of the delay of the surface voltage and depends on the kinetic relaxation time. The model is therefore able to quantitatively describe exotic features of the perovskite solar cell and provides insight into the operation mechanisms of the device. },
  author = {Ghahremanirad, Elnaz and Bou, Agustín and Olyaee, Saeed and Bisquert, Juan},
  doi = {10.1021/acs.jpclett.7b00415},
  eprint = {http://dx.doi.org/10.1021/acs.jpclett.7b00415},
  interhash = {ffb147a7ec4c9a2ccd292b95e10c5052},
  intrahash = {bc5bd51ae049f1208eb6bb04ff9021e8},
  journal = {The Journal of Physical Chemistry Letters},
  note = {PMID: 28287736},
  number = 7,
  pages = {1402-1406},
  title = {Inductive Loop in the Impedance Response of Perovskite Solar Cells Explained by Surface Polarization Model},
  url = {http://dx.doi.org/10.1021/acs.jpclett.7b00415},
  volume = 8,
  year = 2017
}

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