Ba2BiBr is an inorganic ceramic compound composed of barium, bismuth, and bromine, belonging to the halide perovskite family of materials. This is a research-stage compound under investigation for optoelectronic and photovoltaic applications, where bismuth-based halide perovskites are being explored as lead-free alternatives to conventional lead halide perovskites due to their potential for reduced toxicity. The material's notable advantage lies in its environmental and health profile compared to lead-based semiconductors, making it relevant for next-generation solar cells, photodetectors, and light-emitting devices, though it is not yet established in high-volume commercial production.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 4,423.7 | ksi | — | ||
Poisson's Ratio(ν) | 0.3400 | - | — | ||
Shear Modulus(G) | 2,236.5 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2239 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.9390 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 30.93 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -198.1 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.02010 | eV/atom | — | ||
Formation Energy(ΔHf) | -1.483 | eV/atom | — |