Co8S8Sb8
Co8S8Sb8 is a thermodynamically stable, semiconducting ternary compound consisting of cobalt, sulfur, and antimony.
About Co8S8Sb8
Co8S8Sb8 is a complex ternary compound composed of cobalt, sulfur, and antimony. Its position on the convex hull indicates that it is a thermodynamically stable material, making it a subject of interest for researchers investigating stable multi-element systems.
As a semiconducting material, this compound offers unique electronic properties that distinguish it from simple binary sulfides or antimonides. With multiple reported structures across various databases, it represents a significant, albeit specialized, entry in the landscape of inorganic materials.
Key Properties
Cross-validated computational properties for Co8S8Sb8, 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.
Reported Structures
Lowest-energy structures reported for Co8S8Sb8, 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. |
|---|---|---|---|---|---|
| Pbca (No. 61) | orthorhombic | 0.37 | 0.0000 | -16.029 | 7.02 |
| Pmn21 (No. 31) | orthorhombic | 0.00 | 0.0097 | -16.019 | 6.93 |
| P213 (No. 198) | cubic | 0.55 | 0.0105 | -16.018 | 7.20 |
| Pbca (No. 61) | orthorhombic | 0.24 | 0.0443 | -15.984 | 6.95 |
| No. 0 | unknown | — | — | — | 0.87 |
| No. 0 | unknown | — | — | — | 3.43 |
| — | — | — | — | — | 6.94 |
| Pbca (No. 61) | — | — | — | — | — |
| Pbca (No. 61) | — | — | — | — | — |
| Pbca (No. 61) | — | — | — | — | — |
| Pbca (No. 61) | — | — | — | — | — |
| Pbca (No. 61) | — | — | — | — | — |
Applications
Where Co8S8Sb8 is used.
Frequently Asked Questions
Common questions about Co8S8Sb8, answered from cross-validated data.
What is Co8S8Sb8?
Co8S8Sb8 is a thermodynamically stable, semiconducting ternary compound consisting of cobalt, sulfur, and antimony.
What is Co8S8Sb8 used for?
What is the band gap of Co8S8Sb8?
Is Co8S8Sb8 a metal, semiconductor, or insulator?
Is Co8S8Sb8 thermodynamically stable?
What is the crystal structure of Co8S8Sb8?
What is the density of Co8S8Sb8?
How many polymorphs of Co8S8Sb8 are known?
What elements does Co8S8Sb8 contain?
Where does the data for Co8S8Sb8 come from?
How It Compares
As a unique ternary system, Co8S8Sb8 stands as an independent structural entity within the broader field of cobalt-based chalcogenides and pnictides. Its stability and semiconducting nature provide a distinct baseline for future exploration of complex quaternary or doped derivatives in this chemical space.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- 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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