Single‐Source, Solvent‐Free, Room Temperature Deposition of Black γ‐CsSnI3 Films

@article{Kiyek2020SingleSourceSR,
  title={Single‐Source, Solvent‐Free, Room Temperature Deposition of Black $\gamma$‐CsSnI3 Films},
  author={V. Kiyek and Yorick A. Birkh{\"o}lzer and Yury Smirnov and Martin Ledinsk{\'y} and Zdeněk Reme{\vs} and Jamo Momand and Bart J. Kooi and Gertjan Koster and Guus Rijnders and Monica Morales‐Masis},
  journal={Advanced Materials Interfaces},
  year={2020},
  volume={7}
}
The presence of a nonoptically active polymorph (yellow‐phase) competing with the optically active polymorph (black γ‐phase) at room temperature in cesium tin iodide (CsSnI3) and the susceptibility of Sn to oxidation represent two of the biggest obstacles for the exploitation of CsSnI3 in optoelectronic devices. Here room‐temperature single‐source in vacuum deposition of smooth black γ −CsSnI3 thin films is reported. This is done by fabricating a solid target by completely solvent‐free mixing… 
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