Ga4Pb2Se8
Ga4Pb2Se8 is a thermodynamically stable semiconducting quaternary compound consisting of gallium, lead, and selenium.
About Ga4Pb2Se8
Ga4Pb2Se8 is a complex semiconducting compound within the lead chalcogenide family. As a thermodynamically stable phase located on the convex hull, it represents a robust structural arrangement of gallium, lead, and selenium atoms that is of significant interest for advanced materials research. Its electronic character suggests potential for specialized transport properties, making it a subject of study for those investigating new thermoelectric materials. The material is well-documented in structural databases, reflecting its status as a stable and reproducible inorganic compound.
Key Properties
Cross-validated computational properties for Ga4Pb2Se8, 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 Ga4Pb2Se8, 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. |
|---|---|---|---|---|---|
| Fddd (No. 70) | orthorhombic | 2.03 | 0.0000 | -20.201 | 5.89 |
| Cccm (No. 66) | orthorhombic | 1.73 | 0.0086 | -20.192 | 5.92 |
| — | — | — | — | — | 5.76 |
| — | — | — | — | — | 5.76 |
| Cccm (No. 66) | — | — | — | — | — |
| Cccm (No. 66) | — | — | — | — | — |
Applications
Where Ga4Pb2Se8 is used.
Frequently Asked Questions
Common questions about Ga4Pb2Se8, answered from cross-validated data.
What is Ga4Pb2Se8?
Ga4Pb2Se8 is a thermodynamically stable semiconducting quaternary compound consisting of gallium, lead, and selenium.
What is Ga4Pb2Se8 used for?
What is the band gap of Ga4Pb2Se8?
Is Ga4Pb2Se8 a metal, semiconductor, or insulator?
Is Ga4Pb2Se8 thermodynamically stable?
What is the crystal structure of Ga4Pb2Se8?
What is the density of Ga4Pb2Se8?
How many polymorphs of Ga4Pb2Se8 are known?
What elements does Ga4Pb2Se8 contain?
Where does the data for Ga4Pb2Se8 come from?
How It Compares
Within the lead chalcogenide thermoelectrics class.
Unlike the simpler binary lead chalcogenides such as PbS or PbSe, Ga4Pb2Se8 incorporates gallium to form a more intricate quaternary framework. While binary systems like PbS are foundational to thermoelectric applications, Ga4Pb2Se8 offers a distinct structural complexity that differentiates it from the standard rocksalt-type lead salts, providing researchers with a unique platform to explore how ternary and quaternary alloying influences electronic and thermal transport.
Related Compounds
Other Lead Chalcogenide Thermoelectrics in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
Analyze Ga4Pb2Se8 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →