PWO5
PWO5 is a stable semiconducting compound containing phosphorus, tungsten, and oxygen.

About PWO5
PWO5 is a complex inorganic compound composed of phosphorus, tungsten, and oxygen. As a thermodynamically stable phase residing on the convex hull, it represents a robust structural arrangement within its chemical system.
This material exhibits semiconducting electronic characteristics, making it an interesting candidate for electronic and optoelectronic investigations. Its presence across multiple reported structures highlights its significance in solid-state chemistry.
Key Properties
Cross-validated computational properties for PWO5, aggregated across 2 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 PWO5, 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. |
|---|---|---|---|---|---|
| Pna21 (No. 33) | orthorhombic | 1.86 | 0.0000 | -8.621 | 4.96 |
| P-1 (No. 2) | triclinic | 1.62 | 0.0138 | -8.607 | 5.13 |
| C2/c (No. 15) | monoclinic | 0.00 | 0.0309 | -8.590 | 5.60 |
| Pnma (No. 62) | orthorhombic | 0.66 | 0.0526 | -8.568 | 4.72 |
| Pnma (No. 62) | orthorhombic | 0.18 | 0.0692 | -8.552 | 4.35 |
| Fddd (No. 70) | orthorhombic | 1.65 | 0.0739 | -8.547 | 5.31 |
| Pnma (No. 62) | Orthorhombic | — | — | — | 4.72 |
| Pnma (No. 62) | Orthorhombic | — | — | — | 5.38 |
| P-1 (No. 2) | Triclinic | — | — | — | 5.37 |
| Pnma (No. 62) | Orthorhombic | — | — | — | 4.94 |
| P-1 (No. 2) | Triclinic | — | — | — | 5.13 |
| Fddd (No. 70) | Orthorhombic | — | — | — | 5.31 |
Frequently Asked Questions
Common questions about PWO5, answered from cross-validated data.
What is PWO5?
PWO5 is a stable semiconducting compound containing phosphorus, tungsten, and oxygen.
What is the band gap of PWO5?
Is PWO5 a metal, semiconductor, or insulator?
Is PWO5 thermodynamically stable?
What is the crystal structure of PWO5?
What is the density of PWO5?
How many polymorphs of PWO5 are known?
What elements does PWO5 contain?
Where does the data for PWO5 come from?
How It Compares
As a standalone entry in this context, PWO5 serves as a primary reference point for phosphorus-tungsten-oxygen chemistry, demonstrating the structural stability achievable within this specific elemental combination.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
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