KBi2F7
KBi2F7 is a metastable, wide-band-gap fluoride material studied for its structural properties within the halide perovskite class.
About KBi2F7
KBi2F7 is a complex fluoride-based material categorized within the broader family of halide perovskite-related structures. Its electronic character is defined by a wide band gap, classifying it as an insulator rather than a traditional semiconductor, which distinguishes its functional potential in solid-state systems.
As a metastable phase, this compound represents an intriguing target for materials synthesis and structural characterization. Its unique composition of potassium, bismuth, and fluorine provides a distinct chemical environment that researchers study to understand stability and structural diversity in halide-based materials.
Key Properties
Cross-validated computational properties for KBi2F7, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Applications
Where KBi2F7 is used.
Frequently Asked Questions
Common questions about KBi2F7, answered from cross-validated data.
What is KBi2F7?
KBi2F7 is a metastable, wide-band-gap fluoride material studied for its structural properties within the halide perovskite class.
What is KBi2F7 used for?
What is the band gap of KBi2F7?
Is KBi2F7 a metal, semiconductor, or insulator?
Is KBi2F7 thermodynamically stable?
How many polymorphs of KBi2F7 are known?
What elements does KBi2F7 contain?
Where does the data for KBi2F7 come from?
How It Compares
Within the halide perovskite photovoltaics class.
Within the diverse class of halide perovskites and related halides, KBi2F7 occupies a niche position compared to more conventional, semiconducting members like CsPbBr3 or CsSnI3. While many of its siblings are optimized for light-harvesting applications due to their favorable electronic properties, KBi2F7 functions primarily as a wide-gap insulator, offering a different structural template for fundamental studies compared to the highly conductive or photoactive members of the group.
Related Compounds
Other Halide Perovskite Photovoltaics in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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