SnTe2Pb
SnTe2Pb is a semiconducting lead-tin-telluride compound studied for its potential role in thermoelectric energy conversion applications.
About SnTe2Pb
SnTe2Pb is a semiconducting compound within the lead chalcogenide family, characterized by its complex arrangement of tin, lead, and tellurium. As a near-hull material, it occupies a position of interest for researchers investigating stable phases that can be synthesized for functional applications.
This material contributes to the broader study of chalcogenide-based semiconductors, which are essential for developing efficient thermoelectric devices. Its electronic nature and structural properties make it a viable candidate for further experimental exploration in solid-state physics and materials engineering.
Key Properties
Cross-validated computational properties for SnTe2Pb, 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of SnTe2Pb. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for SnTe2Pb, 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. |
|---|---|---|---|---|---|
| R-3m (No. 166) | trigonal | 0.49 | 0.0030 | -0.375 | — |
| R-3m (No. 166) | trigonal | 0.41 | 0.0049 | -33.346 | 7.17 |
| — | — | 0.36 | 0.0054 | -0.365 | — |
| P4/mmm (No. 123) | tetragonal | 0.12 | 0.0087 | -33.342 | 7.16 |
| — | — | 0.00 | 0.2514 | -0.119 | — |
| Fm-3m (No. 225) | cubic | — | — | — | 7.54 |
| P4/mmm (No. 123) | tetragonal | — | — | — | 7.06 |
| Fm-3m (No. 225) | cubic | — | — | — | 7.39 |
| R-3m (No. 166) | trigonal | — | — | — | 7.17 |
| P4/mmm (No. 123) | tetragonal | — | — | — | 7.17 |
| R-3m (No. 166) | trigonal | — | — | — | 7.06 |
| P4/mmm (No. 123) | tetragonal | — | — | — | 7.20 |
Applications
Where SnTe2Pb is used.
Frequently Asked Questions
Common questions about SnTe2Pb, answered from cross-validated data.
What is SnTe2Pb?
SnTe2Pb is a semiconducting lead-tin-telluride compound studied for its potential role in thermoelectric energy conversion applications.
What is SnTe2Pb used for?
What is the band gap of SnTe2Pb?
Is SnTe2Pb a metal, semiconductor, or insulator?
Is SnTe2Pb thermodynamically stable?
What is the crystal structure of SnTe2Pb?
What is the density of SnTe2Pb?
How many polymorphs of SnTe2Pb are known?
What elements does SnTe2Pb contain?
Where does the data for SnTe2Pb come from?
How It Compares
Within the lead chalcogenide thermoelectrics class.
Within the diverse group of lead chalcogenides, SnTe2Pb represents a more complex multi-element variation compared to simpler binary systems like PbS or PbTe. While binary chalcogenides are the foundational benchmarks for thermoelectric performance, SnTe2Pb offers a unique structural configuration that distinguishes it from the standard binary lattices found in its class.
Related Compounds
Other Lead Chalcogenide Thermoelectrics in the database.
Data sources & attribution
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
- cod — Data from the Crystallography Open Database (crystallography.net/cod/). Cite: Grazulis et al., J. Appl. Cryst. 42, 726 (2009). (CC0-1.0)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
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