Ba4Na2Nb10O30
Ba4Na2Nb10O30 is a complex, semiconducting lead-free oxide being studied as a sustainable alternative for piezoelectric and electromechanical devices.
About Ba4Na2Nb10O30
Ba4Na2Nb10O30 is a complex oxide belonging to the lead-free piezoelectric class, characterized by its semiconducting electronic nature. Its structural arrangement is of significant interest for researchers seeking environmentally friendly alternatives to lead-based ceramics in electromechanical systems.
As a material that sits near the thermodynamic hull, it is considered a promising candidate for experimental synthesis. The existence of multiple reported structures across various databases underscores its potential for structural tuning and optimization in advanced sensor and actuator technologies.
Key Properties
Cross-validated computational properties for Ba4Na2Nb10O30, 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 Ba4Na2Nb10O30, 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. |
|---|---|---|---|---|---|
| Ama2 (No. 40) | orthorhombic | 2.51 | 0.0128 | -8.771 | 5.09 |
| P4bm (No. 100) | tetragonal | 2.51 | 0.0155 | -8.768 | 5.02 |
| P4bm (No. 100) | — | — | — | — | — |
| — | — | — | — | — | 5.03 |
Applications
Where Ba4Na2Nb10O30 is used.
Frequently Asked Questions
Common questions about Ba4Na2Nb10O30, answered from cross-validated data.
What is Ba4Na2Nb10O30?
Ba4Na2Nb10O30 is a complex, semiconducting lead-free oxide being studied as a sustainable alternative for piezoelectric and electromechanical devices.
What is Ba4Na2Nb10O30 used for?
What is the band gap of Ba4Na2Nb10O30?
Is Ba4Na2Nb10O30 a metal, semiconductor, or insulator?
Is Ba4Na2Nb10O30 thermodynamically stable?
What is the crystal structure of Ba4Na2Nb10O30?
What is the density of Ba4Na2Nb10O30?
How many polymorphs of Ba4Na2Nb10O30 are known?
What elements does Ba4Na2Nb10O30 contain?
Where does the data for Ba4Na2Nb10O30 come from?
How It Compares
Within the lead-free piezoelectrics class.
Within the diverse landscape of lead-free piezoelectrics, Ba4Na2Nb10O30 offers a more complex structural architecture compared to simpler perovskites like BaTiO3 or KNbO3. While many of its class members are well-established insulators, its semiconducting character distinguishes it, suggesting unique functional roles in applications where electronic conductivity must be balanced with piezoelectric response.
Related Compounds
Other Lead-Free Piezoelectrics in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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