@article{yin2014,
  title={Unusual defect physics in CH3NH3PbI3 perovskite solar cell absorber},
  author={Wan‐Jian Yin and Tingting Shi and Yanfa Yan},
  year={2014},
  journal={Applied Physics Letters},
  doi={10.1063/1.4864778},
  url={https://doi.org/10.1063/1.4864778}
}