RbBiF4
RbBiF4 is a metastable, wide-gap insulating halide compound studied for its structural properties within the perovskite materials family.

About RbBiF4
RbBiF4 is a complex halide compound belonging to the broader family of halide perovskite materials. Characterized by its wide-gap insulating electronic structure, it represents a specialized niche within the class, often studied for its structural diversity and potential in optoelectronic research.
As a metastable phase, this compound is of significant interest to materials scientists investigating phase stability and structural transitions. Its existence across multiple reported structures highlights its complexity and the ongoing efforts to map its potential utility in advanced semiconductor applications.
Key Properties
Cross-validated computational properties for RbBiF4, 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 RbBiF4 is used.
Frequently Asked Questions
Common questions about RbBiF4, answered from cross-validated data.
What is RbBiF4?
RbBiF4 is a metastable, wide-gap insulating halide compound studied for its structural properties within the perovskite materials family.
What is RbBiF4 used for?
What is the band gap of RbBiF4?
Is RbBiF4 a metal, semiconductor, or insulator?
Is RbBiF4 thermodynamically stable?
How many polymorphs of RbBiF4 are known?
What elements does RbBiF4 contain?
Where does the data for RbBiF4 come from?
How It Compares
Within the halide perovskite photovoltaics class.
Within the diverse class of halide perovskites, RbBiF4 stands out as a wide-gap insulator, contrasting sharply with the highly conductive and widely utilized photovoltaic candidates like CsPbBr3 and CsSnI3. While siblings such as RbPbF3 share similar structural motifs, RbBiF4 occupies a distinct position due to its unique bismuth-based chemistry and metastable nature.
Related Compounds
Other Halide Perovskite Photovoltaics in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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