K4La2Nb10O30
K4La2Nb10O30 is a semiconducting, lead-free complex oxide being researched for its piezoelectric potential in sustainable electronics.
About K4La2Nb10O30
K4La2Nb10O30 is a complex oxide belonging to the lead-free piezoelectric class. Its structural arrangement, characterized by its near-hull thermodynamic stability, suggests it is a viable candidate for experimental synthesis and integration into advanced functional materials research.
As a semiconducting material, it offers unique electronic characteristics distinct from traditional insulating piezoelectrics. Its composition of potassium, lanthanum, niobium, and oxygen positions it as a significant subject for those investigating environmentally friendly alternatives to lead-based ceramics in sensing and actuation technologies.
Key Properties
Cross-validated computational properties for K4La2Nb10O30, 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 K4La2Nb10O30, 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. |
|---|---|---|---|---|---|
| P4/mbm (No. 127) | tetragonal | 1.89 | 0.0074 | -8.839 | 4.69 |
| P4/mbm (No. 127) | — | — | — | — | — |
| — | — | — | — | — | 4.37 |
Applications
Where K4La2Nb10O30 is used.
Frequently Asked Questions
Common questions about K4La2Nb10O30, answered from cross-validated data.
What is K4La2Nb10O30?
K4La2Nb10O30 is a semiconducting, lead-free complex oxide being researched for its piezoelectric potential in sustainable electronics.
What is K4La2Nb10O30 used for?
What is the band gap of K4La2Nb10O30?
Is K4La2Nb10O30 a metal, semiconductor, or insulator?
Is K4La2Nb10O30 thermodynamically stable?
What is the crystal structure of K4La2Nb10O30?
What is the density of K4La2Nb10O30?
How many polymorphs of K4La2Nb10O30 are known?
What elements does K4La2Nb10O30 contain?
Where does the data for K4La2Nb10O30 come from?
How It Compares
Within the lead-free piezoelectrics class.
Within the diverse landscape of lead-free piezoelectrics, K4La2Nb10O30 occupies a specialized niche compared to simpler perovskites like BaTiO3 or KNbO3. While those classic materials are widely utilized for their robust electromechanical responses, this compound offers a more complex structural framework that potentially allows for finer tuning of electronic properties, distinguishing it from the more common binary and ternary oxides like NaTaO3.
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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