@article{KegelmannTockhornWolffetal.2019,
  author    = {Lukas Kegelmann and Philipp Tockhorn and Christian Michael Wolff and Jos{\´e} A. M{\´a}rquez and Sebasti{\´a}n Caicedo D{\´a}vila and Lars Korte and Thomas Unold and Wilfried Loevenich and Dieter Neher and Bernd Rech and Steve Albrecht},
  title     = {Mixtures of Dopant-Free Spiro-OMeTAD and Water-Free PEDOT as a Passivating Hole Contact in Perovskite Solar Cells},
  journal   = {ACS applied materials \& interfaces},
  volume    = {11},
  number    = {9},
  pages     = {9172 -- 9181},
  doi       = {10.1021/acsami.9b01332},
  year      = {2019},
}