Bi2InNbO7
Bi2InNbO7 is a semiconducting, metastable lead-free oxide investigated for its potential role in piezoelectric and electronic applications.
About Bi2InNbO7
Bi2InNbO7 is a complex oxide belonging to the class of lead-free piezoelectrics. As a semiconducting material, it represents an alternative to traditional lead-based ceramics, offering a pathway toward more environmentally benign functional materials for sensing and actuation technologies.
Although it is classified as a metastable phase, this compound is of significant interest for researchers aiming to tune piezoelectric responses through chemical substitution. Its unique composition of bismuth, indium, and niobium allows for distinct structural arrangements that are critical for developing next-generation electronic components.
Key Properties
Cross-validated computational properties for Bi2InNbO7, aggregated across 2 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 Bi2InNbO7, 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. |
|---|---|---|---|---|---|
| Imma (No. 74) | orthorhombic | 2.10 | 0.0441 | -7.183 | 7.82 |
| Imma (No. 74) | — | — | — | — | — |
Synthesis Routes
Literature-extracted synthesis procedures targeting Bi2InNbO7.
Applications
Where Bi2InNbO7 is used.
Frequently Asked Questions
Common questions about Bi2InNbO7, answered from cross-validated data.
What is Bi2InNbO7?
Bi2InNbO7 is a semiconducting, metastable lead-free oxide investigated for its potential role in piezoelectric and electronic applications.
What is Bi2InNbO7 used for?
What is the band gap of Bi2InNbO7?
Is Bi2InNbO7 a metal, semiconductor, or insulator?
Is Bi2InNbO7 thermodynamically stable?
What is the crystal structure of Bi2InNbO7?
What is the density of Bi2InNbO7?
How many polymorphs of Bi2InNbO7 are known?
How is Bi2InNbO7 synthesized?
What elements does Bi2InNbO7 contain?
Where does the data for Bi2InNbO7 come from?
How It Compares
Within the lead-free piezoelectrics class.
Within the diverse family of lead-free piezoelectrics, Bi2InNbO7 stands out as a more complex, multi-cation system compared to simpler perovskites like BaTiO3 or KNbO3. While materials such as NaNbO3 and KTaO3 are well-established benchmarks in the field, this compound provides a different structural landscape that challenges conventional design rules for achieving high-performance electromechanical coupling.
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).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
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