CsPbBr3
Cesium lead bromide · CPB
Cesium lead bromide is a halide perovskite material known for its exceptional optoelectronic properties. It is widely researched for its potential to improve the efficiency and performance of next-generation light-emitting devices and solar energy harvesting technologies.
Key Properties
Cross-validated computational properties for Cesium lead bromide, 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 CsPbBr3, 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. |
|---|---|---|---|---|---|
| Pnma (No. 62) | orthorhombic | 2.88 | 0.0000 | -3.541 | 5.01 |
| Pnma (No. 62) | orthorhombic | 2.01 | 0.0046 | -3.536 | 4.73 |
| I4/mcm (No. 140) | tetragonal | 1.82 | 0.0075 | -3.533 | 4.74 |
| Amm2 (No. 38) | orthorhombic | 1.96 | 0.0091 | -3.532 | 4.72 |
| Pm-3m (No. 221) | cubic | 1.78 | 0.0251 | -3.516 | 4.57 |
| Pm-3m (No. 221) | Cubic | — | — | — | 4.60 |
| Pnma (No. 62) | Orthorhombic | — | — | — | 4.91 |
| Amm2 (No. 38) | Orthorhombic | — | — | — | 4.66 |
| Amm2 (No. 38) | Orthorhombic | — | — | — | 4.49 |
| Pnma (No. 62) | Orthorhombic | — | — | — | 4.67 |
| I4/mcm (No. 140) | Tetragonal | — | — | — | 4.50 |
| Pnma (No. 62) | Orthorhombic | — | — | — | 4.93 |
Synthesis Routes
Literature-extracted synthesis procedures targeting CsPbBr3.
Applications
Where Cesium lead bromide is used.
Frequently Asked Questions
Common questions about Cesium lead bromide, answered from cross-validated data.
What is CsPbBr3?
Cesium lead bromide is a halide perovskite material known for its exceptional optoelectronic properties. It is widely researched for its potential to improve the efficiency and performance of next-generation light-emitting devices and solar energy harvesting technologies.
What is CsPbBr3 used for?
What is the band gap of CsPbBr3?
Is CsPbBr3 a metal, semiconductor, or insulator?
Is CsPbBr3 thermodynamically stable?
What is the crystal structure of CsPbBr3?
What is the density of CsPbBr3?
How many polymorphs of CsPbBr3 are known?
How is CsPbBr3 synthesized?
What elements does CsPbBr3 contain?
Where does the data for CsPbBr3 come from?
Related Compounds
Other Halide Perovskite Photovoltaics 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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