Te2W3Se4
Te2W3Se4 is a metastable, semiconducting tungsten chalcogenide compound composed of tungsten, tellurium, and selenium.
About Te2W3Se4
Te2W3Se4 is a complex tungsten-based chalcogenide featuring a combination of tellurium and selenium anions. As a semiconducting material, it represents a specialized composition within the broader family of transition metal dichalcogenide-related compounds, characterized by its metastable nature.
Its structural diversity is highlighted by multiple reported configurations across various databases. This metastability suggests unique pathways for synthesis and potential utility in applications where tunable electronic properties are required through precise atomic arrangement.
Key Properties
Cross-validated computational properties for Te2W3Se4, 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 Te2W3Se4, 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 | 0.15 | 0.0358 | -29.537 | 5.93 |
| P-6m2 (No. 187) | hexagonal | 0.23 | 0.0360 | -29.537 | 5.92 |
| P1 (No. 1) | — | — | — | — | — |
| P-6m2 (No. 187) | — | — | — | — | — |
| P3m1 (No. 156) | Trigonal | — | — | — | 6.15 |
| P-6m2 (No. 187) | Hexagonal | — | — | — | 6.00 |
| P3m1 (No. 156) | Trigonal | — | — | — | 5.93 |
| P-6m2 (No. 187) | Hexagonal | — | — | — | 5.92 |
| P3m1 (No. 156) | Trigonal | — | — | — | 6.00 |
| P-6m2 (No. 187) | Hexagonal | — | — | — | 6.17 |
Applications
Where Te2W3Se4 is used.
Frequently Asked Questions
Common questions about Te2W3Se4, answered from cross-validated data.
What is Te2W3Se4?
Te2W3Se4 is a metastable, semiconducting tungsten chalcogenide compound composed of tungsten, tellurium, and selenium.
What is Te2W3Se4 used for?
What is the band gap of Te2W3Se4?
Is Te2W3Se4 a metal, semiconductor, or insulator?
Is Te2W3Se4 thermodynamically stable?
What is the crystal structure of Te2W3Se4?
What is the density of Te2W3Se4?
How many polymorphs of Te2W3Se4 are known?
What elements does Te2W3Se4 contain?
Where does the data for Te2W3Se4 come from?
How It Compares
As a unique ternary chalcogenide, Te2W3Se4 occupies a distinct space in materials research where it serves as an intriguing subject for studying phase stability and electronic modulation compared to more common binary tungsten chalcogenides.
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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