HgBr2
semiconductor· HgBr2
Mercury(II) bromide (HgBr2) is an inorganic semiconductor compound composed of mercury and bromine, belonging to the halide semiconductor family. Historically used in radiation detection systems and specialized optoelectronic devices, HgBr2 has seen limited modern industrial adoption due to toxicity concerns and the availability of less hazardous alternatives; current interest is primarily in research contexts exploring layered materials and two-dimensional semiconductor physics. The material's relatively weak interlayer bonding makes it of interest to researchers investigating exfoliation-based device engineering, though practical applications remain largely experimental.
radiation detection (research)X-ray/gamma-ray spectroscopy (legacy)layered semiconductor research2D materials explorationoptoelectronic devices (experimental)halide semiconductor physics
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 12.30 | GPa | — | ||
Exfoliation Energy(Eexf) | 81.52 | meV/atom | — | ||
Poisson's Ratio(ν) | 0.3100 | - | — | ||
Shear Modulus(G) | 6.140 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 6.136 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 3.590 | eV | — | ||
| ↳ | 2.075 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 20.90 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 0.02177 | C/m² | — | ||
| ↳ | 0.03594 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -88.47 | µV/K | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.01360 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.5856 | eV/atom | — | ||
| ↳ | -0.3350 | eV/atom | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.