Sc2O3
semiconductor· Sc2O3
Scandium oxide (Sc₂O₃) is a rare-earth ceramic compound that serves as a high-performance oxide semiconductor with applications in advanced optoelectronics and solid-state devices. It is valued in the semiconductor and photonics industries for its wide bandgap, optical transparency in the visible and infrared regions, and chemical stability at elevated temperatures. Engineers select Sc₂O₃ when thermal robustness, radiation hardness, and optical properties are critical—particularly in aerospace, nuclear, and high-brightness lighting applications where conventional semiconductors degrade.
solid-state lasers and amplifiersradiation-hardened electronicshigh-temperature optical windowsaerospace thermal barriersscintillation detectorsUV and infrared optics
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 24,287.7 | ksi | — | ||
| ↳ | 24,304.8 | ksi | — | ||
| ↳ | 26,409.9 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.02300 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν)2 entries | 0.2960 | - | — | ||
| ↳ | 0.4000 | - | — | ||
Shear Modulus(G)3 entries | 11,489.5 | ksi | — | ||
| ↳ | 11,512.9 | ksi | — | ||
| ↳ | 10,876.4 | ksi | — |
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 | |
|---|---|---|---|---|---|
Density(ρ) | 0.1487 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)3 entries | 6.200 | eV | — | ||
| ↳ | 1.319 | eV | — | ||
| ↳ | 3.566 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 26.99 | - | — | ||
Magnetic Moment(μB)2 entries | 0.000 | μB | — | ||
| ↳ | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -273.7 | 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) | 0.1190 | eV/atom | — | ||
Formation Energy(ΔHf)3 entries | -2.870 | eV/atom | — | ||
| ↳ | -3.956 | eV/atom | — | ||
| ↳ | -3.696 | 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.