Bi20N4O40
Bi20N4O40 is a thermodynamically stable semiconducting bismuth oxynitride characterized by a complex atomic framework.
About Bi20N4O40
Bi20N4O40 is a complex bismuth-based oxynitride that occupies a stable position on the thermodynamic convex hull. As a semiconducting material, it represents a specialized inorganic structure that leverages the unique electronic configuration of bismuth combined with nitrogen and oxygen anions.
Its structural complexity is highlighted by its presence in multiple crystallographic databases, reflecting significant interest in its atomic arrangement. This compound serves as a subject of investigation for researchers looking to harness bismuth-rich frameworks for functional electronic applications.
Key Properties
Cross-validated computational properties for Bi20N4O40, 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 Bi20N4O40, 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 | 2.62 | 0.0000 | -6.328 | 7.68 |
| — | — | — | — | — | 6.63 |
| No. 0 | unknown | — | — | — | 1.91 |
| — | — | — | — | — | 7.24 |
| — | — | — | — | — | 7.24 |
| P21/c (No. 14) | — | — | — | — | — |
Applications
Where Bi20N4O40 is used.
Frequently Asked Questions
Common questions about Bi20N4O40, answered from cross-validated data.
What is Bi20N4O40?
Bi20N4O40 is a thermodynamically stable semiconducting bismuth oxynitride characterized by a complex atomic framework.
What is Bi20N4O40 used for?
What is the band gap of Bi20N4O40?
Is Bi20N4O40 a metal, semiconductor, or insulator?
Is Bi20N4O40 thermodynamically stable?
What is the crystal structure of Bi20N4O40?
What is the density of Bi20N4O40?
How many polymorphs of Bi20N4O40 are known?
What elements does Bi20N4O40 contain?
Where does the data for Bi20N4O40 come from?
How It Compares
As a unique inorganic compound, Bi20N4O40 stands out for its thermodynamic stability and semiconducting nature, serving as a distinct example of how bismuth-nitrogen-oxygen systems can form ordered, stable phases that warrant further exploration in materials science.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- 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).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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