Thallium bromide (TlBr) is a binary semiconductor compound from the halide family, characterized by a direct bandgap and high atomic number constituents that enable strong photon absorption. It is primarily used in gamma-ray and X-ray detection systems where its high stopping power and good charge collection efficiency make it valuable for radiation imaging and spectroscopy applications in nuclear medicine, security screening, and environmental monitoring. TlBr offers advantages over alternatives like CdZnTe in terms of higher detection efficiency for hard X-rays and gamma rays, though it is less commonly deployed than some competitors due to material availability and cost constraints; research interest remains active in optimizing crystal growth and detector performance.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 25.43 | GPa | — | ||
| ↳ | 23.17 range 18.26–28.07median of 2 measurements | GPa | — | ||
Poisson's Ratio(ν) | 0.3100 | - | — | ||
Shear Modulus(G)2 entries | 10.88 | GPa | — | ||
| ↳ | 8.037 range 7.095–8.978median of 2 measurements | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 7.457 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 2.640 | eV | — | ||
| ↳ | 2.023 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 37.70 | - | — | ||
| ↳ | 27.07 range 6.593–47.54median of 2 measurements | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -126.6 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.8950 | eV/atom | — | ||
| ↳ | -0.8902 | eV/atom | — |