Bi4Te7Pb
Bi4Te7Pb is a semiconducting bismuth-based chalcogenide compound investigated for its potential role in thermoelectric and solid-state energy applications.
About Bi4Te7Pb
Bi4Te7Pb is a complex semiconducting compound belonging to the bismuth chalcogenide family. Its structural configuration, characterized by its near-hull thermodynamic stability, suggests it is a viable candidate for synthesis and experimental characterization within solid-state research.
As a member of the chalcogenide class, this material is primarily investigated for its thermoelectric potential. Its electronic properties are typical of narrow-gap semiconductors, making it a subject of interest for researchers looking to tune thermal and electrical transport for energy conversion technologies.
Key Properties
Cross-validated computational properties for Bi4Te7Pb, 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 Bi4Te7Pb, 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. |
|---|---|---|---|---|---|
| P-3m1 (No. 164) | trigonal | 0.42 | 0.0013 | -39.329 | 7.45 |
| P-3m1 (No. 164) | — | — | — | — | — |
| P-3m1 (No. 164) | Trigonal | — | — | — | 7.52 |
| P-3m1 (No. 164) | Trigonal | — | — | — | 7.65 |
| P-3m1 (No. 164) | Trigonal | — | — | — | 7.60 |
Applications
Where Bi4Te7Pb is used.
Frequently Asked Questions
Common questions about Bi4Te7Pb, answered from cross-validated data.
What is Bi4Te7Pb?
Bi4Te7Pb is a semiconducting bismuth-based chalcogenide compound investigated for its potential role in thermoelectric and solid-state energy applications.
What is Bi4Te7Pb used for?
What is the band gap of Bi4Te7Pb?
Is Bi4Te7Pb a metal, semiconductor, or insulator?
Is Bi4Te7Pb thermodynamically stable?
What is the crystal structure of Bi4Te7Pb?
What is the density of Bi4Te7Pb?
How many polymorphs of Bi4Te7Pb are known?
What elements does Bi4Te7Pb contain?
Where does the data for Bi4Te7Pb come from?
How It Compares
Within the bismuth chalcogenide thermoelectrics class.
Within the diverse landscape of bismuth chalcogenides, Bi4Te7Pb occupies a unique niche compared to more widely known binary compounds like Bi2Te3 or Bi2Se3. While those simpler systems serve as the foundational benchmarks for thermoelectric performance, the inclusion of lead in the Bi4Te7Pb lattice adds complexity to its structural chemistry, positioning it among advanced ternary and quaternary systems like Ge2Sb2Te5 that are engineered for specific phase-change or transport behaviors.
Related Compounds
Other Bismuth Chalcogenide Thermoelectrics in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
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