La2S3
lanthanum sulfide · lanthanum sesquisulfide
Lanthanum sulfide is a stable semiconducting material composed of lanthanum and sulfur that is widely studied for its diverse structural phases.
About lanthanum sulfide
Lanthanum sulfide is a robust, thermodynamically stable compound that crystallizes in a variety of structural arrangements. As a semiconducting material, it serves as a foundational building block for specialized electronic and optoelectronic components where stable sulfide chemistry is required.
Its significance lies in its ability to maintain structural integrity under diverse conditions, making it a subject of extensive investigation across multiple databases. Researchers utilize this compound to explore the intersection of rare-earth chemistry and semiconductor physics for next-generation device development.
Key Properties
Cross-validated computational properties for lanthanum sulfide, 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.
Applications
Where lanthanum sulfide is used.
Frequently Asked Questions
Common questions about lanthanum sulfide, answered from cross-validated data.
What is La2S3?
Lanthanum sulfide is a stable semiconducting material composed of lanthanum and sulfur that is widely studied for its diverse structural phases.
What is La2S3 used for?
What is the band gap of La2S3?
Is La2S3 a metal, semiconductor, or insulator?
Is La2S3 thermodynamically stable?
How many polymorphs of La2S3 are known?
What elements does La2S3 contain?
Where does the data for La2S3 come from?
How It Compares
As a stable binary sulfide, La2S3 represents a key reference point for lanthanum-based chalcogenides. It occupies a prominent position in materials research due to its structural versatility and reliable semiconducting behavior, serving as a primary model for studying the electronic properties of rare-earth sulfides.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
Analyze La2S3 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →