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) | 4,200.3 | ksi | DFT · OptB88vdW | ||
Exfoliation Energy(Eexf) | 105.4 | meV/atom | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.3900 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | 1,324.2 | ksi | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1911 | lb/in³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)3 entries | 3.310 | eV | Measured | ||
| ↳ | 3.173 | eV | DFT · OptB88vdW | ||
| ↳ | 4.200 | eV | DFT · TBmBJ | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 21.53 | - | DFT · OptB88vdW | ||
| ↳ | 21.97 | - | DFT · PBE | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 6.400 | - | DFT · OptB88vdW | ||
| ↳ | 5.240 | - | DFT · TBmBJ | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | DFT · PBE | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | DFT · PBE | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | DFT · OptB88vdW | ||
Thermoelectric Power Factor(PF)2 entries | 0.00226 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.00110 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -332.2 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 394.7 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 0.000 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.05150 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf)2 entries | -0.9073 | eV/atom | DFT · OptB88vdW | ||
| ↳ | -0.9583 | eV/atom | Measured |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data