CrI2
CrI2 is a metastable semiconducting material consisting of chromium and iodine used primarily in fundamental materials science research.
About CrI2
CrI2 is a semiconducting compound composed of chromium and iodine. As a metastable material, it represents a unique phase that requires specific synthesis conditions to maintain its structural integrity, making it a subject of interest for fundamental solid-state chemistry studies.
Because of its electronic character, this material is primarily investigated for its potential in specialized semiconductor applications. Its existence across numerous reported structures highlights its complexity and the ongoing efforts to characterize its behavior in various crystalline forms.
Key Properties
Cross-validated computational properties for CrI2, 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 CrI2 is used.
Frequently Asked Questions
Common questions about CrI2, answered from cross-validated data.
What is CrI2?
CrI2 is a metastable semiconducting material consisting of chromium and iodine used primarily in fundamental materials science research.
What is CrI2 used for?
What is the band gap of CrI2?
Is CrI2 a metal, semiconductor, or insulator?
Is CrI2 thermodynamically stable?
How many polymorphs of CrI2 are known?
What elements does CrI2 contain?
Where does the data for CrI2 come from?
How It Compares
As a unique chromium-based halide, CrI2 occupies a distinct position in materials research, serving as a critical case study for understanding the stability and electronic properties of transition metal dihalides in the absence of more common structural analogs.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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