Pb₄SeBr₆ is a mixed-halide lead selenobromide ceramic compound belonging to the family of lead halide perovskites and related structures. This is an experimental material primarily of interest to materials scientists and researchers rather than established industrial applications; it is studied for potential use in optoelectronic and photovoltaic device research where lead halide semiconductors show promise for light emission and absorption. The compound's appeal lies in its tunable electronic properties through compositional variation—substituting selenium and bromine at different ratios allows researchers to engineer bandgaps and carrier transport characteristics for next-generation solar cells, LEDs, or radiation detectors, though stability and toxicity concerns (lead-based) remain significant barriers to commercialization.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 26.37 | GPa | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.3300 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | 10.70 | GPa | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 6.674 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.827 | eV | DFT · OptB88vdW | ||
Dielectric Constant (Relative Permittivity)(εr) | 30.73 | - | DFT · OptB88vdW | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij) | 0.07373 | C/m² | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.02470 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -0.8680 | eV/atom | DFT · OptB88vdW |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data