Lead bromide (PbBr2) is an inorganic halide perovskite precursor and semiconductor compound that belongs to the family of lead halide materials. It is primarily investigated in research and emerging technology contexts for optoelectronic applications, particularly as a building block in perovskite solar cells, photodectors, and radiation detection devices where its semiconducting properties enable light absorption and charge carrier transport. Engineers and researchers select PbBr2 for its tunable bandgap, solution processability, and role in next-generation photovoltaic and sensing technologies, though practical deployment remains limited by stability and toxicity concerns that drive ongoing material engineering efforts.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 28.96 | GPa | — | ||
Exfoliation Energy(Eexf) | 105.4 | meV/atom | — | ||
Poisson's Ratio(ν) | 0.3900 | - | — | ||
Shear Modulus(G) | 9.130 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 5.289 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 3.310 | eV | — | ||
| ↳ | 2.640 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 21.97 | - | — | ||
| ↳ | 21.53 | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -286.7 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.05150 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.9583 | eV/atom | — | ||
| ↳ | -0.9073 | eV/atom | — |