Efficient Strategy to Obtain High-Quality Perovskite Single Crystals

Efficient Strategy to Obtain High-Quality Perovskite Single Crystals
Multiple-cation and mixed halide (FAMACs) perovskites developed by adding Br/MA/Cs ions into the FAPbI
3 perovskites are known to be the ideal compositions for use in high-efficiency photovoltaic and photoelectronic devices thanks to their reduced hysteresis, suppressed ion migration, and improved stability.
Inch-sized high-quality perovskite single crystals formed by suppressing the phase segregation for applications in light-powered integrated circuits. Image Credit: Dalian Institute of Chemical Physics.
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But the actual composition, specifically the content of Cs in FAMACs perovskites, for sophisticated devices reported by various research groups, has not been so consistent.

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