SrTiO3
semiconductor· SrTiO3
Strontium titanate (SrTiO₃) is a ceramic perovskite compound that exhibits semiconductor properties and is valued for its high dielectric constant, structural stability, and optical transparency. It is widely used in multilayer capacitors, tunable microwave devices, and photocatalytic applications, where its ability to be engineered with dopants and defects makes it attractive for energy conversion and environmental remediation. The material is also extensively studied in thin-film form for oxide electronics, ferroelectric devices, and as a substrate for growing complex oxide heterostructures—making it a bridge between classical ceramics engineering and next-generation functional materials research.
multilayer ceramic capacitorsmicrowave tunable devicesphotocatalysis and water splittingoxide thin-film electronicsferroelectric heterostructureshigh-permittivity dielectrics
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 172.7 | GPa | — | ||
| ↳ | 172.7 | GPa | — | ||
| ↳ | 178.4 | GPa | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.00000514 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | — | ||
Poisson's Ratio(ν)2 entries | 0.2381 | - | — | ||
| ↳ | 0.2700 | - | — | ||
Shear Modulus(G)3 entries | 109.6 | GPa | — | ||
| ↳ | 109.6 | GPa | — | ||
| ↳ | 96.91 | GPa | — |
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) | 5.022 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)4 entries | 3.150 | eV | — | ||
| ↳ | 2.009 | eV | — | ||
| ↳ | 4.100 | eV | — | ||
| ↳ | 1.906 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 7.800 | - | — | ||
| ↳ | 9.963 | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB)3 entries | 0.000 | μB | — | ||
| ↳ | 0.0000174 | μB | — | ||
| ↳ | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -317.5 | 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)4 entries | -3.354 | eV/atom | — | ||
| ↳ | -0.2400 | eV/atom | — | ||
| ↳ | -3.463 | eV/atom | — | ||
| ↳ | -3.419 | 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.