YbSe is a rare-earth chalcogenide semiconductor compound combining ytterbium and selenium in a rock-salt crystal structure. This material is primarily of research and developmental interest for optoelectronic and thermoelectric applications, where the rare-earth element provides unique electronic and magnetic properties distinct from conventional semiconductors. YbSe and related rare-earth chalcogenides are being investigated for infrared detectors, mid-infrared optics, and potential thermoelectric energy conversion devices, where the strong spin-orbit coupling and narrow bandgap characteristics of ytterbium compounds offer advantages over more conventional binary semiconductors.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 57.67 | GPa | — | ||
Exfoliation Energy(Eexf) | 755.7 | meV/atom | — | ||
Poisson's Ratio(ν) | 0.2200 | - | — | ||
Shear Modulus(G) | 42.94 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 8.308 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 1.500 | eV | — | ||
| ↳ | 2.052 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 12.00 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -192.6 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -2.212 | eV/atom | — |