Be2Si
Beryllium silicide is a binary inorganic compound composed of beryllium and silicon. It is primarily studied in the context of materials science for its structural properties and potential use in specialized high-performance applications.
Key Properties
Cross-validated computational properties for Be2Si, 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 Be2Si, 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. |
|---|---|---|---|---|---|
| Fm-3m (No. 225) | cubic | 0.00 | 0.2588 | -4.043 | 2.08 |
| I212121 (No. 24) | Orthorhombic | — | — | — | 1.41 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 2.47 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 2.06 |
| Cm (No. 8) | Monoclinic | — | — | — | 1.90 |
| P21/m (No. 11) | Monoclinic | — | — | — | 3.76 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 2.11 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 2.52 |
| I212121 (No. 24) | Orthorhombic | — | — | — | 1.28 |
| Cm (No. 8) | Monoclinic | — | — | — | 1.70 |
| Cm (No. 8) | Monoclinic | — | — | — | 1.70 |
| C2/m (No. 12) | Monoclinic | — | — | — | 1.38 |
Applications
Where Be2Si is used.
Frequently Asked Questions
Common questions about Be2Si, answered from cross-validated data.
What is Be2Si?
Beryllium silicide is a binary inorganic compound composed of beryllium and silicon. It is primarily studied in the context of materials science for its structural properties and potential use in specialized high-performance applications.
What is Be2Si used for?
What is the band gap of Be2Si?
Is Be2Si a metal, semiconductor, or insulator?
Is Be2Si thermodynamically stable?
What is the crystal structure of Be2Si?
What is the density of Be2Si?
How many polymorphs of Be2Si are known?
What elements does Be2Si contain?
Where does the data for Be2Si come from?
Related Compounds
Other Silicon Anode Materials in the database.
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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