LuIO
Lutetium oxyiodide is a crystalline inorganic compound that belongs to the class of rare-earth oxyhalides. It is primarily investigated for its potential utility in advanced optical and radiation detection technologies.
ILuO
Overview
Key Properties
Cross-validated computational properties for LuIO, 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.
3.27 eV
Range across DFT structures
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.
0.000 eV/atom
Best (lowest) across sources
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.
On hull (stable)
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
6
4 databases, 3 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for LuIO, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| P4/nmm (No. 129) | tetragonal | 3.27 | 0.0000 | -6.758 | 7.67 |
| P4/nmm (No. 129) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 3.86 |
| C2/m (No. 12) | Monoclinic | — | — | — | 9.63 |
| C2/m (No. 12) | Monoclinic | — | — | — | 9.03 |
| C2/m (No. 12) | Monoclinic | — | — | — | 9.91 |
Uses
Applications
Where LuIO is used.
Scintillation materialsRadiation detectorsOptical research
Reference
Frequently Asked Questions
Common questions about LuIO, answered from cross-validated data.
What is LuIO?
Lutetium oxyiodide is a crystalline inorganic compound that belongs to the class of rare-earth oxyhalides. It is primarily investigated for its potential utility in advanced optical and radiation detection technologies.
More questions
What is LuIO used for?
LuIO is used in scintillation materials, radiation detectors, and optical research.
What is the band gap of LuIO?
LuIO has a DFT-computed band gap of 3.27 eV across 6 reported structures.
Is LuIO a metal, semiconductor, or insulator?
With a wide band gap up to 3.27 eV it is an insulator / wide-band-gap material.
Is LuIO thermodynamically stable?
Yes — LuIO sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of LuIO?
The lowest-energy reported polymorph of LuIO is tetragonal symmetry, space group P4/nmm (No. 129).
What is the density of LuIO?
The computed density of the ground-state structure of LuIO is 7.67 g/cm³.
How many polymorphs of LuIO are known?
6 structures of LuIO are reported across 4 databases, spanning 3 distinct space groups.
What elements does LuIO contain?
LuIO contains I, Lu, and O (3 elements).
Where does the data for LuIO come from?
LuIO data is cross-referenced from materials_project, jarvis, cod, mpaloe.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- mpaloe — Data from mpaloe.
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