Al2Se3
semiconductor· Al2Se3
Al₂Se₃ is a III-VI compound semiconductor formed from aluminum and selenium, belonging to the family of binary metal chalcogenides. While primarily of research and developmental interest rather than a production material, it is investigated for optoelectronic and photovoltaic applications where wide bandgap semiconductors are needed. Engineers and researchers consider this material for specialized roles in UV photodetectors, thin-film solar cells, and high-temperature electronic devices where its wide direct bandgap and thermal stability offer potential advantages over conventional silicon-based systems, though commercial maturity and scalable synthesis remain ongoing challenges.
UV photodetectorsthin-film photovoltaicswide-bandgap semiconductorsresearch optoelectronicshigh-temperature electronicsexperimental solar cells
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 35.27 | GPa | — | ||
Poisson's Ratio(ν) | 0.2400 | - | — | ||
Shear Modulus(G) | 22.68 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 3.819 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 3.100 | eV | — | ||
| ↳ | 1.945 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)3 entries | 9.350 | - | — | ||
| ↳ | 11.16 | - | — | ||
| ↳ | 8.095 range 6.327–9.863median of 2 measurements | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.4986 | C/m² | — | ||
Seebeck Coefficient(S) | -111.1 | 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) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -1.175 | eV/atom | — | ||
| ↳ | -0.9262 | 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.