PbTe
PbTe has a DFT band gap of 0.10–0.81 eV across 12 reported structures in 5 space groups. Cross-validated across 3 computational databases.
Key Properties
Cross-validated computational properties for PbTe, 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 PbTe. 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.
Synthesis Routes
Literature-extracted synthesis procedures targeting PbTe.
Patent Landscape
1 patent reference PbTe or close compositional variants.
| Patent | Title | Assignee | Granted |
|---|---|---|---|
| 8889028 | n-Type doped PbTe and PbSe alloys for thermoelectric applications | — | — |
Frequently Asked Questions
Common questions about PbTe, answered from cross-validated data.
What is the band gap of PbTe?
PbTe has a DFT-computed band gap of 0.10–0.81 eV across 12 reported structures.
Is PbTe a metal, semiconductor, or insulator?
Is PbTe thermodynamically stable?
How many polymorphs of PbTe are known?
How is PbTe synthesized?
What elements does PbTe contain?
Where does the data for PbTe come from?
Related Compounds
Other Lead Chalcogenide Thermoelectrics in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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