Nano-chalcogenide perovskites have shown outstanding opto-electrical properties. They have also depicted brilliant thermal as well as aqueous stability (against external moisture). However, these materials are fabricated at high temperatures as compared to traditional perovskites (CH3NH3PbX3 etc.). Now question is what are the best low-temperature methods used for synthesis of nano-chalcogenide perovskites? How, these materials could be deployed in the fabrication of efficient, and stable perovskite solar cells?
Chalcogenide perovskites are proposed for photovoltaic applications. The predicted band gaps of CaTiS3, BaZrS3, CaZrSe3, and CaHfSe3 with the distorted perovskite structure are within the optimal range for making single-junction solar cells. The predicted optical absorption properties of these materials are superior compared with other high-efficiency solar-cell materials. Possible replacement of the alkaline-earth cations by molecular cations, e.g., (NH3NH3)(2+), as in the organic-inorganic halide perovskites (e.g., CH3NH3PbI3), are also proposed and found to be stable. The chalcogenide perovskites provide promising candidates for addressing the challenging issues regarding halide perovskites such as instability in the presence of moisture and containing the toxic element Pb.
Dear Hasan Abbas ,
Thank you for exciting this topic.
Such nano-chalcogenide perovskites could be formed at room temperature by sputtering and subsequent rapid thermal processing.
Please for more information follow the link:Article The chalcogenide perovskite BaZrS3: Thin film growth by sput...
Best wishes
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