Mercury selenide (HgSe) is a narrow-bandgap II-VI semiconductor compound formed from mercury and selenium. It is primarily used in infrared (IR) detection and thermal imaging applications, where its ability to respond to mid- and long-wavelength infrared radiation makes it valuable for military, aerospace, and scientific instrumentation. HgSe is chosen for photodetectors and focal plane arrays in scenarios requiring sensitivity in the IR spectrum; it competes with alternatives like HgCdTe and InSb but offers distinct band alignment properties for specific wavelength windows.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 5,971.7 | ksi | — | ||
| ↳ | 6,657.2 | ksi | — | ||
Poisson's Ratio(ν) | 0.3800 | - | — | ||
Shear Modulus(G)2 entries | 1,921.9 | ksi | — | ||
| ↳ | 1,949.3 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2768 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 0.07000 | eV | — | ||
| ↳ | 0.000 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 25.33 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.9658 | C/m² | — | ||
Seebeck Coefficient(S) | -66.64 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.01740 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.2254 | eV/atom | — | ||
| ↳ | 0.00402 | eV/atom | — |