Holmium sesquiselenide (HoHSe) is a rare-earth ceramic compound belonging to the sesquichalcogenide family, featuring holmium paired with selenium in a 1:1.5 composition ratio. This material is primarily investigated in research contexts for potential applications in optoelectronic devices, solid-state lasers, and thermal management systems where rare-earth semiconductors offer tunable electronic properties. Its selection over conventional ceramics or semiconductors would be driven by the unique optical and thermal characteristics associated with lanthanide-based compounds, though industrial adoption remains limited to specialized high-performance applications.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 89.78 | GPa | — | ||
Poisson's Ratio(ν) | 0.2000 | - | — | ||
Shear Modulus(G) | 68.77 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 8.305 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.698 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 15.06 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 0.3487 | C/m² | — | ||
| ↳ | 0.2821 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -84.70 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -1.521 | eV/atom | — |