CoAsS is a ternary semiconductor compound composed of cobalt, arsenic, and sulfur, belonging to the family of metal chalcogenide semiconductors. This material is primarily of research and developmental interest for next-generation optoelectronic and photovoltaic applications, where its tunable bandgap and potential for efficient charge carrier transport make it an alternative to conventional binary semiconductors. CoAsS systems are being investigated for thin-film solar cells, photodetectors, and light-emitting devices, offering potential advantages in cost, abundance, or performance over established III-V or II-VI semiconductors, though industrial deployment remains limited.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 139.0 | GPa | — | ||
| ↳ | 130.7 | GPa | — | ||
Poisson's Ratio(ν) | 0.2500 | - | — | ||
Shear Modulus(G)2 entries | 104.4 | GPa | — | ||
| ↳ | 80.76 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 6.098 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 0.6000 | eV | — | ||
| ↳ | 0.000 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 29.84 | - | — | ||
| ↳ | 27.30 range 23.57–31.02median of 2 measurements | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 0.07114 | C/m² | — | ||
| ↳ | 0.02578 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -36.43 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000400 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.4919 | eV/atom | — |