Ir4Sb4Te4
Ir4Sb4Te4 is a thermodynamically stable semiconducting alloy composed of iridium, antimony, and tellurium, utilized in catalytic material research.
About Ir4Sb4Te4
Ir4Sb4Te4 is a distinct semiconducting compound within the platinum-group alloy catalyst family. Its position on the convex hull indicates high thermodynamic stability, making it a robust candidate for specialized catalytic applications where structural integrity is paramount. The material is characterized by a well-defined atomic arrangement, supported by multiple reported structures across major databases. This stability profile suggests that Ir4Sb4Te4 maintains its electronic and chemical properties under demanding conditions, distinguishing it as a reliable component in material science research. Its semiconducting nature allows for unique charge transport behaviors that are highly sought after in the development of next-generation catalytic surfaces.
Key Properties
Cross-validated computational properties for Ir4Sb4Te4, 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.
Reported Structures
Lowest-energy structures reported for Ir4Sb4Te4, 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. |
|---|---|---|---|---|---|
| P213 (No. 198) | cubic | 0.70 | 0.0000 | -5.990 | 10.94 |
| — | — | — | — | — | 6.27 |
| P213 (No. 198) | — | — | — | — | — |
| — | — | — | — | — | 9.52 |
Applications
Where Ir4Sb4Te4 is used.
Frequently Asked Questions
Common questions about Ir4Sb4Te4, answered from cross-validated data.
What is Ir4Sb4Te4?
Ir4Sb4Te4 is a thermodynamically stable semiconducting alloy composed of iridium, antimony, and tellurium, utilized in catalytic material research.
What is Ir4Sb4Te4 used for?
What is the band gap of Ir4Sb4Te4?
Is Ir4Sb4Te4 a metal, semiconductor, or insulator?
Is Ir4Sb4Te4 thermodynamically stable?
What is the crystal structure of Ir4Sb4Te4?
What is the density of Ir4Sb4Te4?
How many polymorphs of Ir4Sb4Te4 are known?
What elements does Ir4Sb4Te4 contain?
Where does the data for Ir4Sb4Te4 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the diverse class of platinum-group alloys, Ir4Sb4Te4 stands out for its complex ternary composition compared to binary counterparts like As2Ir or GeRu. While many members of this group are primarily metallic, the semiconducting character of Ir4Sb4Te4 provides a specialized electronic niche that differentiates it from the more conventional conductors in the class.
Related Compounds
Other Platinum-Group Alloy Catalysts in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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