Tm2O3
semiconductor· Tm2O3
Tm₂O₃ (thulium oxide) is a rare-earth ceramic semiconductor belonging to the lanthanide oxide family, characterized by high density and significant mechanical stiffness. It is primarily used in specialized optics, phosphor materials for displays and lighting, and as a dopant in laser host crystals—particularly in fiber lasers and solid-state laser systems where its unique optical properties enable efficient energy conversion. Engineers select Tm₂O₃ over conventional semiconductors when rare-earth luminescence, high-temperature stability, or infrared emission capabilities are critical to device performance, though cost and material availability typically limit its use to high-value or research-driven applications.
fiber lasers and amplifierssolid-state laser hostsphosphor materialsinfrared optical componentsrare-earth dopantshigh-temperature ceramics
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | — | ksi | — | — | |
Poisson's Ratio(ν) | — | - | — | — | |
Shear Modulus(G) | — | ksi | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | lb/in³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)3 entries | — | eV | — | — | |
| ↳ | — | eV | — | — | |
| ↳ | — | eV | — | — | |
Dielectric Constant (Relative Permittivity)(εr) | — | - | — | — | |
Magnetic Moment(μB)2 entries | — | μB | — | — | |
| ↳ | — | µB | — | — | |
Piezoelectric Modulus(eij) | — | C/m² | — | — | |
Seebeck Coefficient(S) | — | 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) | — | eV/atom | — | — | |
Formation Energy(ΔHf)3 entries | — | eV/atom | — | — | |
| ↳ | — | eV/atom | — | — | |
| ↳ | — | 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.