Ba2SrTi3O9
Ba2SrTi3O9 is a semiconducting perovskite titanate oxide that is considered a promising candidate for advanced electronic materials development.
About Ba2SrTi3O9
Ba2SrTi3O9 is a complex perovskite titanate that integrates barium and strontium into a structured oxide framework. Its semiconducting electronic character and near-hull thermodynamic stability suggest it is a viable candidate for experimental synthesis and material characterization studies.
As a member of the titanate family, this compound is primarily investigated for its potential in high-performance electronic applications. Its structural versatility allows it to serve as a platform for exploring tunable dielectric properties, which are essential for modern capacitor and sensor technologies.
Key Properties
Cross-validated computational properties for Ba2SrTi3O9, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Reported Structures
Lowest-energy structures reported for Ba2SrTi3O9, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| Cmm2 (No. 35) | orthorhombic | 1.81 | 0.0073 | -8.421 | 5.52 |
| Cmm2 (No. 35) | Orthorhombic | — | — | — | 5.52 |
| Cmm2 (No. 35) | Orthorhombic | — | — | — | 5.82 |
| Cmm2 (No. 35) | Orthorhombic | — | — | — | 5.67 |
| Cmm2 (No. 35) | — | — | — | — | — |
Applications
Where Ba2SrTi3O9 is used.
Frequently Asked Questions
Common questions about Ba2SrTi3O9, answered from cross-validated data.
What is Ba2SrTi3O9?
Ba2SrTi3O9 is a semiconducting perovskite titanate oxide that is considered a promising candidate for advanced electronic materials development.
What is Ba2SrTi3O9 used for?
What is the band gap of Ba2SrTi3O9?
Is Ba2SrTi3O9 a metal, semiconductor, or insulator?
Is Ba2SrTi3O9 thermodynamically stable?
What is the crystal structure of Ba2SrTi3O9?
What is the density of Ba2SrTi3O9?
How many polymorphs of Ba2SrTi3O9 are known?
What elements does Ba2SrTi3O9 contain?
Where does the data for Ba2SrTi3O9 come from?
How It Compares
Within the perovskite titanates class.
Within the diverse family of perovskite titanates, Ba2SrTi3O9 serves as a bridge between the simple binary-cation structures like BaTiO3 and SrTiO3 and more complex layered phases. While BaTiO3 is the industry standard for ferroelectric applications, Ba2SrTi3O9 offers a distinct stoichiometry that allows researchers to fine-tune the lattice dynamics and electronic response compared to the more commonly studied titanates.
Related Compounds
Other Perovskite Titanates in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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