BiI
BiI is a metastable semiconducting binary compound consisting of bismuth and iodine.
About BiI
BiI is a metastable semiconducting compound composed of bismuth and iodine. Its existence as a distinct phase highlights the complex bonding interactions possible between heavy p-block elements and halogens, making it a subject of significant interest for structural researchers.
Due to its metastable nature, this material is often studied to understand the phase space of bismuth-based halides. It serves as an important entry in materials informatics, where its numerous reported structural variations provide insights into the stability limits of simple binary systems.
Key Properties
Cross-validated computational properties for BiI, aggregated across 4 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 BiI is used.
Frequently Asked Questions
Common questions about BiI, answered from cross-validated data.
What is BiI?
BiI is a metastable semiconducting binary compound consisting of bismuth and iodine.
What is BiI used for?
What is the band gap of BiI?
Is BiI a metal, semiconductor, or insulator?
Is BiI thermodynamically stable?
How many polymorphs of BiI are known?
What elements does BiI contain?
Where does the data for BiI come from?
How It Compares
As a unique binary bismuth iodide, BiI occupies a specific niche in the landscape of inorganic halides, representing a metastable configuration that contrasts with more common, thermodynamically stable bismuth triiodide phases.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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