CaS2Sr
CaS2Sr is a metastable semiconducting ternary sulfide containing calcium, strontium, and sulfur.

About CaS2Sr
CaS2Sr is a ternary sulfide compound composed of calcium, strontium, and sulfur. As a semiconducting material, it represents a specialized niche in inorganic chemistry where the interplay between alkaline earth metals and chalcogens dictates its electronic behavior.
Because it exists in a metastable state, this compound is a subject of interest for researchers investigating phase stability and structural evolution. Its existence across multiple databases highlights its role as a target for synthesis studies aimed at understanding complex sulfide frameworks.
Key Properties
Cross-validated computational properties for CaS2Sr, 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.
Frequently Asked Questions
Common questions about CaS2Sr, answered from cross-validated data.
What is CaS2Sr?
CaS2Sr is a metastable semiconducting ternary sulfide containing calcium, strontium, and sulfur.
What is the band gap of CaS2Sr?
Is CaS2Sr a metal, semiconductor, or insulator?
Is CaS2Sr thermodynamically stable?
How many polymorphs of CaS2Sr are known?
What elements does CaS2Sr contain?
Where does the data for CaS2Sr come from?
How It Compares
As a unique ternary sulfide, CaS2Sr occupies a distinct position in materials research, serving as a model for how the substitution of calcium and strontium influences the electronic landscape of sulfur-based lattices.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
Analyze CaS2Sr in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →