Pb2Se2
Pb2Se2 has a DFT band gap of 0.43–1.30 eV across 36 reported structures in 17 space groups. Cross-validated across 4 computational databases.
At a glance
Key Properties
Cross-validated computational properties for Pb2Se2, aggregated across 4 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.
0.43–1.30 eV
Range across DFT structures
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.
0.000 eV/atom
Best (lowest) across sources
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.
On hull (stable)
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
36
4 databases, 17 space groups
Synthesis
Synthesis Routes
Literature-extracted synthesis procedures targeting Pb2Se2.
Solid State
Procedure available · ceder_solid_state
Reference
Frequently Asked Questions
Common questions about Pb2Se2, answered from cross-validated data.
What is the band gap of Pb2Se2?
Pb2Se2 has a DFT-computed band gap of 0.43–1.30 eV across 36 reported structures.
More questions
Is Pb2Se2 a metal, semiconductor, or insulator?
With a band gap up to 1.30 eV it is a semiconductor.
Is Pb2Se2 thermodynamically stable?
Yes — Pb2Se2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of Pb2Se2 are known?
36 structures of Pb2Se2 are reported across 4 databases, spanning 17 distinct space groups.
How is Pb2Se2 synthesized?
Literature-reported routes for Pb2Se2 include solid state.
What elements does Pb2Se2 contain?
Pb2Se2 contains Pb and Se (2 elements).
Where does the data for Pb2Se2 come from?
Pb2Se2 data is cross-referenced from latticegraph.
Explore
Related Compounds
Other Lead Chalcogenide Thermoelectrics in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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