Bi8O36W8
Bi8O36W8 is a thermodynamically stable semiconducting bismuth tungstate oxide used in materials science research.
About Bi8O36W8
Bi8O36W8 is a complex bismuth tungstate oxide that exists as a thermodynamically stable phase on the convex hull. Its electronic character as a semiconductor makes it an intriguing candidate for investigation in solid-state chemistry and materials science applications.
Given its status as a stable inorganic compound, this material is of significant interest for researchers mapping out the structural landscape of bismuth-based oxides. Its unique stoichiometry provides a distinct framework for studying charge transport and optical properties in complex oxide systems.
Key Properties
Cross-validated computational properties for Bi8O36W8, 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 Bi8O36W8, 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. |
|---|---|---|---|---|---|
| Pbcn (No. 60) | orthorhombic | 2.02 | 0.0004 | -8.046 | 8.77 |
| Pna21 (No. 33) | orthorhombic | 1.96 | 0.0020 | -8.044 | 8.46 |
| No. 0 | unknown | — | — | — | 2.21 |
| Pna21 (No. 33) | — | — | — | — | — |
Applications
Where Bi8O36W8 is used.
Frequently Asked Questions
Common questions about Bi8O36W8, answered from cross-validated data.
What is Bi8O36W8?
Bi8O36W8 is a thermodynamically stable semiconducting bismuth tungstate oxide used in materials science research.
What is Bi8O36W8 used for?
What is the band gap of Bi8O36W8?
Is Bi8O36W8 a metal, semiconductor, or insulator?
Is Bi8O36W8 thermodynamically stable?
What is the crystal structure of Bi8O36W8?
What is the density of Bi8O36W8?
How many polymorphs of Bi8O36W8 are known?
What elements does Bi8O36W8 contain?
Where does the data for Bi8O36W8 come from?
How It Compares
As a stable bismuth tungstate, this compound represents a well-defined structural point in the broader family of heavy-metal oxides. It serves as a foundational example of how bismuth and tungsten can organize into complex, stable lattice arrangements, providing a benchmark for future studies on similar multimetallic oxide systems.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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