Ca2O8W2
calcium tungstate · scheelite
Calcium tungstate is a stable, insulating crystalline material widely recognized for its use in scintillation and luminescence technologies.
About calcium tungstate
Calcium tungstate is a thermodynamically stable inorganic compound that exists as a wide-gap insulator. Its robust structural framework and electronic properties make it a foundational material in the study of tungstate-based crystalline systems.
This material is highly valued for its optical characteristics, particularly its ability to act as a phosphor. It is frequently utilized in sensitive detection equipment where its insulating nature and stable lattice provide reliable performance for high-energy physics and medical imaging.
Key Properties
Cross-validated computational properties for calcium tungstate, 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 calcium tungstate is used.
Frequently Asked Questions
Common questions about calcium tungstate, answered from cross-validated data.
What is Ca2O8W2?
Calcium tungstate is a stable, insulating crystalline material widely recognized for its use in scintillation and luminescence technologies.
What is Ca2O8W2 used for?
What is the band gap of Ca2O8W2?
Is Ca2O8W2 a metal, semiconductor, or insulator?
Is Ca2O8W2 thermodynamically stable?
How many polymorphs of Ca2O8W2 are known?
What elements does Ca2O8W2 contain?
Where does the data for Ca2O8W2 come from?
How It Compares
As a primary member of the tungstate family, this compound serves as a benchmark for structural stability and optical performance. It represents a highly characterized phase that defines the standard for insulating metal-oxide frameworks within its class.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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