An Environmentally Stable and Lead‐Free Chalcogenide Perovskite

@article{Gupta2020AnES,
  title={An Environmentally Stable and Lead‐Free Chalcogenide Perovskite},
  author={Tushar Gupta and Debjit Ghoshal and Anthony Yoshimura and Swastik Basu and Philippe K. Chow and Aniruddha Singh Lakhnot and Juhi Pandey and Jeffrey M. Warrender and Harry Efstathiadis and Ajay Soni and Eric Osei‐Agyemang and Ganesh Balasubramanian and Shengbai Zhang and Sufei Shi and Toh-Ming Lu and Vincent Meunier and Nikhil A Koratkar},
  journal={Advanced Functional Materials},
  year={2020},
  volume={30}
}
Organic–inorganic halide perovskites are intrinsically unstable when exposed to moisture and/or light. Additionally, the presence of lead in many perovskites raises toxicity concerns. Herein, a thin film of barium zirconium sulfide (BaZrS3), a lead‐free chalcogenide perovskite, is reported. Photoluminescence and X‐ray diffraction measurements show that BaZrS3 is far more stable than methylammonium lead iodide (MAPbI3) in moist environments. Moisture‐ and light‐induced degradations in BaZrS3 and… 

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