Ba2O18Te2W4
Ba2O18Te2W4 is a complex, wide-gap insulating oxide that is considered thermodynamically stable enough to be a target for laboratory synthesis.
About Ba2O18Te2W4
Ba2O18Te2W4 is a complex inorganic oxide featuring barium, tellurium, and tungsten. As a wide-gap insulator, it exhibits electronic properties characteristic of highly stable dielectric materials, making it a focus for fundamental structural studies.
Its thermodynamic profile places it near the convex hull, suggesting it is a viable candidate for experimental synthesis. The existence of multiple structural variations across databases underscores its significance as a complex system in modern materials science.
Key Properties
Cross-validated computational properties for Ba2O18Te2W4, 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 Ba2O18Te2W4, 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. |
|---|---|---|---|---|---|
| P21 (No. 4) | monoclinic | 3.42 | 0.0114 | -8.076 | 6.66 |
| P21 (No. 4) | — | — | — | — | — |
| — | — | — | — | — | 5.97 |
| P21 (No. 4) | monoclinic | — | — | — | 3.55 |
Applications
Where Ba2O18Te2W4 is used.
Frequently Asked Questions
Common questions about Ba2O18Te2W4, answered from cross-validated data.
What is Ba2O18Te2W4?
Ba2O18Te2W4 is a complex, wide-gap insulating oxide that is considered thermodynamically stable enough to be a target for laboratory synthesis.
What is Ba2O18Te2W4 used for?
What is the band gap of Ba2O18Te2W4?
Is Ba2O18Te2W4 a metal, semiconductor, or insulator?
Is Ba2O18Te2W4 thermodynamically stable?
What is the crystal structure of Ba2O18Te2W4?
What is the density of Ba2O18Te2W4?
How many polymorphs of Ba2O18Te2W4 are known?
What elements does Ba2O18Te2W4 contain?
Where does the data for Ba2O18Te2W4 come from?
How It Compares
As a unique complex oxide, this compound serves as a distinct representative of its chemical family. While it currently stands as a singular entry in this context, its structural complexity and insulating nature distinguish it from simpler binary or ternary oxides within the broader landscape of barium-based ceramics.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
Analyze Ba2O18Te2W4 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →