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Cs<sub>2</sub>AgBiBr<sub>6−x</sub>Cl<sub>x</sub> solid solutions – band gap engineering with halide double perovskites
63
Citations
13
References
2019
Year
Materials ScienceMaterials EngineeringEngineeringPerovskite Solar CellPhysicsHalide Double PerovskitesApplied PhysicsPerovskite MaterialsCondensed Matter PhysicsQuantum MaterialsHalide PerovskitesBand Gap EngineeringSolid-state PhysicLead-free PerovskitesUpward DeviationBand Gap
The halide double perovskite solid solution Cs<sub>2</sub>AgBiBr<sub>6−x</sub>Cl<sub>x</sub> has been investigated and found to exhibit a band gap that increases from 2.2 eV to 2.8 eV as the Cl<sup>−</sup> content increases, with an upward deviation from Vegard's law when <italic>x</italic> > 5.
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