Sb2TeSe2
This material is a chalcogenide compound composed of antimony, tellurium, and selenium. It is primarily studied for its potential in advanced electronic and optoelectronic devices due to its unique semiconductor properties.
Key Properties
Cross-validated computational properties for Sb2TeSe2, 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 Sb2TeSe2, 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. |
|---|---|---|---|---|---|
| R3m (No. 160) | trigonal | 0.49 | 0.0000 | -4.177 | 5.88 |
| R-3m (No. 166) | trigonal | 0.55 | 0.0366 | -4.140 | 5.73 |
| R3m (No. 160) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| R-3m (No. 166) | Trigonal | — | — | — | 5.73 |
| R-3m (No. 166) | Trigonal | — | — | — | 5.89 |
| R-3m (No. 166) | Trigonal | — | — | — | 5.83 |
| R3m (No. 160) | Trigonal | — | — | — | 5.76 |
| R3m (No. 160) | Trigonal | — | — | — | 5.92 |
| R3m (No. 160) | Trigonal | — | — | — | 5.85 |
Applications
Where Sb2TeSe2 is used.
Frequently Asked Questions
Common questions about Sb2TeSe2, answered from cross-validated data.
What is Sb2TeSe2?
This material is a chalcogenide compound composed of antimony, tellurium, and selenium. It is primarily studied for its potential in advanced electronic and optoelectronic devices due to its unique semiconductor properties.
What is Sb2TeSe2 used for?
What is the band gap of Sb2TeSe2?
Is Sb2TeSe2 a metal, semiconductor, or insulator?
Is Sb2TeSe2 thermodynamically stable?
What is the crystal structure of Sb2TeSe2?
What is the density of Sb2TeSe2?
How many polymorphs of Sb2TeSe2 are known?
What elements does Sb2TeSe2 contain?
Where does the data for Sb2TeSe2 come from?
Related Compounds
Other Phase-Change Memory Materials in the database.
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).
- mpaloe — Data from mpaloe.
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