BiPO4
Bismuth phosphate · Bismutite
Bismuth phosphate is a stable, insulating inorganic compound widely studied for its potential in photocatalytic and optical technologies.
About Bismuth phosphate
Bismuth phosphate is a robust, thermodynamically stable inorganic compound characterized by its wide-gap insulating electronic structure. Its ability to maintain structural integrity makes it a reliable candidate for various chemical and physical applications where stability is paramount. The material has been extensively documented in structural databases, reflecting its significance in solid-state chemistry research. Its unique electronic properties allow it to function effectively in environments where charge carrier management is critical for performance. It is frequently utilized in the development of photocatalytic systems and as a host material for luminescent applications due to its favorable optical characteristics.
Key Properties
Cross-validated computational properties for Bismuth phosphate, 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 BiPO4, 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/c (No. 14) | monoclinic | 3.78 | 0.0000 | -7.264 | 6.87 |
| Cmcm (No. 63) | orthorhombic | 4.03 | 0.0023 | -7.261 | 6.35 |
| P21/m (No. 11) | monoclinic | 3.69 | 0.0038 | -7.260 | 6.05 |
| P3121 (No. 152) | trigonal | 4.24 | 0.0134 | -7.250 | 5.58 |
| C2/c (No. 15) | monoclinic | 3.00 | 0.1035 | -7.160 | 4.63 |
| P21/c (No. 14) | monoclinic | 2.04 | 0.9459 | -6.318 | 5.98 |
| P21/m (No. 11) | — | — | — | — | — |
| Amm2 (No. 38) | Orthorhombic | — | — | — | 6.38 |
| P21/c (No. 14) | Monoclinic | — | — | — | 6.75 |
| P21/c (No. 14) | Monoclinic | — | — | — | 7.11 |
| Amm2 (No. 38) | Orthorhombic | — | — | — | 5.05 |
| P21/c (No. 14) | Monoclinic | — | — | — | 6.60 |
Synthesis Routes
Literature-extracted synthesis procedures targeting BiPO4.
Applications
Where Bismuth phosphate is used.
Frequently Asked Questions
Common questions about Bismuth phosphate, answered from cross-validated data.
What is BiPO4?
Bismuth phosphate is a stable, insulating inorganic compound widely studied for its potential in photocatalytic and optical technologies.
What is BiPO4 used for?
What is the band gap of BiPO4?
Is BiPO4 a metal, semiconductor, or insulator?
Is BiPO4 thermodynamically stable?
What is the crystal structure of BiPO4?
What is the density of BiPO4?
How many polymorphs of BiPO4 are known?
How is BiPO4 synthesized?
What elements does BiPO4 contain?
Where does the data for BiPO4 come from?
How It Compares
As a standalone material of interest in its class, bismuth phosphate is recognized for its high degree of structural versatility, evidenced by the numerous reported crystal phases found in literature. It serves as a foundational example of a stable, insulating bismuth-based oxo-anion framework, often providing a benchmark for researchers investigating the interplay between structural symmetry and electronic performance in similar bismuth-containing systems.
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.
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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