TeW2Se3
TeW2Se3 is a metastable semiconducting compound composed of tungsten, selenium, and tellurium that is currently being explored for its unique structural characteristics.
About TeW2Se3
TeW2Se3 is a complex ternary chalcogenide that integrates tungsten with both selenium and tellurium. As a semiconducting material, it represents a specialized chemical system that bridges the properties of transition metal dichalcogenides, offering a distinct electronic profile for researchers exploring advanced material synthesis.
Due to its metastable nature, this compound is of significant interest in materials science for its structural diversity. It exists in various configurations across multiple databases, highlighting its role as a subject of ongoing investigation into how stoichiometry and atomic arrangement influence the stability and electronic behavior of complex tungsten-based semiconductors.
Key Properties
Cross-validated computational properties for TeW2Se3, 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 TeW2Se3, 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. |
|---|---|---|---|---|---|
| P3m1 (No. 156) | trigonal | 1.10 | 0.0982 | -28.898 | 8.34 |
| P3m1 (No. 156) | trigonal | 0.78 | 0.0998 | -28.897 | 6.37 |
| P3m1 (No. 156) | trigonal | 0.76 | 0.0999 | -28.897 | 6.37 |
| P3m1 (No. 156) | — | — | — | — | — |
| P3m1 (No. 156) | Trigonal | — | — | — | 6.37 |
| P3m1 (No. 156) | Trigonal | — | — | — | 6.66 |
| P3m1 (No. 156) | Trigonal | — | — | — | 6.46 |
| P3m1 (No. 156) | Trigonal | — | — | — | 8.34 |
| P3m1 (No. 156) | Trigonal | — | — | — | 8.66 |
| P3m1 (No. 156) | Trigonal | — | — | — | 8.44 |
| P3m1 (No. 156) | Trigonal | — | — | — | 6.37 |
| P3m1 (No. 156) | Trigonal | — | — | — | 6.65 |
Applications
Where TeW2Se3 is used.
Frequently Asked Questions
Common questions about TeW2Se3, answered from cross-validated data.
What is TeW2Se3?
TeW2Se3 is a metastable semiconducting compound composed of tungsten, selenium, and tellurium that is currently being explored for its unique structural characteristics.
What is TeW2Se3 used for?
What is the band gap of TeW2Se3?
Is TeW2Se3 a metal, semiconductor, or insulator?
Is TeW2Se3 thermodynamically stable?
What is the crystal structure of TeW2Se3?
What is the density of TeW2Se3?
How many polymorphs of TeW2Se3 are known?
What elements does TeW2Se3 contain?
Where does the data for TeW2Se3 come from?
How It Compares
As a unique ternary system, TeW2Se3 serves as an intriguing case study in the broader landscape of tungsten-based chalcogenides. While many binary materials in this class are well-characterized, this compound stands out for its metastable state and the specific interplay between its selenium and tellurium components, which distinguishes it from simpler binary analogs.
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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