As2Se3
semiconductor· As2Se3
As₂Se₃ is a binary chalcogenide semiconductor compound belonging to the group of layered materials with a layered crystal structure similar to black phosphorus and transition metal dichalcogenides. It is primarily investigated as an emerging material for infrared photonics, nonlinear optical devices, and phase-change memory applications, where its wide transparency window in the mid-to-far infrared region and tunable electronic properties make it attractive compared to conventional semiconductors.
infrared optical devicesnonlinear opticsphase-change memoryphotonic integrated circuits2D materials researchthermal imaging components
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 24.02 | GPa | — | ||
Exfoliation Energy(Eexf) | 133 | meV/atom | — | ||
Poisson's Ratio(ν) | 0.2500 | - | — | ||
Shear Modulus(G) | 15.33 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.888 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 1.840 | eV | — | ||
| ↳ | 1.136 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 19.51 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -263.1 | µV/K | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.03310 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.2125 | eV/atom | — | ||
| ↳ | -0.1062 | eV/atom | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.