Te3W2Se
Te3W2Se is a metastable semiconducting material consisting of tungsten, tellurium, and selenium.
About Te3W2Se
Te3W2Se is a complex inorganic compound composed of tungsten, tellurium, and selenium. It exhibits semiconducting electronic character, making it a subject of interest for researchers investigating electronic and optoelectronic material properties.
As a metastable phase, this compound represents a specific structural configuration within the tungsten-chalcogen system. Its existence across multiple databases highlights its importance in the study of non-equilibrium material synthesis and phase stability.
Key Properties
Cross-validated computational properties for Te3W2Se, 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 Te3W2Se, 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 | 0.68 | 0.0418 | -32.413 | 6.55 |
| P3m1 (No. 156) | trigonal | 0.64 | 0.0420 | -32.413 | 6.55 |
| P3m1 (No. 156) | — | — | — | — | — |
| P3m1 (No. 156) | — | — | — | — | — |
| P3m1 (No. 156) | Trigonal | — | — | — | 6.55 |
| P3m1 (No. 156) | Trigonal | — | — | — | 6.79 |
| P3m1 (No. 156) | Trigonal | — | — | — | 6.63 |
Applications
Where Te3W2Se is used.
Frequently Asked Questions
Common questions about Te3W2Se, answered from cross-validated data.
What is Te3W2Se?
Te3W2Se is a metastable semiconducting material consisting of tungsten, tellurium, and selenium.
What is Te3W2Se used for?
What is the band gap of Te3W2Se?
Is Te3W2Se a metal, semiconductor, or insulator?
Is Te3W2Se thermodynamically stable?
What is the crystal structure of Te3W2Se?
What is the density of Te3W2Se?
How many polymorphs of Te3W2Se are known?
What elements does Te3W2Se contain?
Where does the data for Te3W2Se come from?
How It Compares
As a unique member of the tungsten-chalcogenide family, Te3W2Se occupies a distinct position due to its specific stoichiometry and metastable nature. While many binary tungsten chalcogenides are well-characterized, this ternary phase offers a specialized structural framework that differentiates it from simpler, more common compounds in the class.
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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