K2Se is an inorganic binary semiconductor compound composed of potassium and selenium, belonging to the family of alkali metal chalcogenides. This material is primarily studied in research and development contexts rather than in mature industrial production, with potential applications in optoelectronics, photovoltaics, and solid-state ion conductors. K2Se and related compounds are investigated for their tunable band gaps and ionic conductivity, making them candidates for next-generation energy storage systems and wide-bandgap semiconductor devices where conventional III-V or II-VI semiconductors may be less suitable.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 18.10 | GPa | — | ||
Poisson's Ratio(ν) | 0.2900 | - | — | ||
Shear Modulus(G) | 8.640 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.337 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 1.800 | eV | — | ||
| ↳ | 2.171 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)3 entries | 6.370 | - | — | ||
| ↳ | 5.819 | - | — | ||
| ↳ | 4.753 range 3.358–6.148median of 2 measurements | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -92.54 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.01660 | eV/atom | — | ||
Formation Energy(ΔHf) | -1.207 | eV/atom | — |