Cu2WSe4 is a quaternary chalcogenide semiconductor compound combining copper, tungsten, and selenium elements in a fixed stoichiometry. This material belongs to the family of ternary and quaternary semiconductors being actively explored for photovoltaic and optoelectronic applications, where it offers potential advantages in band gap engineering and light absorption compared to binary or simpler ternary alternatives. Cu2WSe4 remains primarily in research and development stages, with investigation focused on thin-film solar cells, photodetectors, and related energy conversion devices where its crystal structure and electronic properties may enable improved efficiency or cost performance.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 30.28 | GPa | — | ||
Poisson's Ratio(ν) | 0.2300 | - | — | ||
Shear Modulus(G) | 19.27 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 6.139 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 1.650 | eV | — | ||
| ↳ | 0.8870 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 8.869 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.3409 | C/m² | — | ||
Seebeck Coefficient(S) | 670.2 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.3105 | eV/atom | — |