CaAl2S4

metal
· JVASP-22032· CaAl2S4

CaAl2S4 is a ternary chalcogenide compound composed of calcium, aluminum, and sulfur, belonging to the sulfide ceramic family. This material is primarily of research and development interest for optoelectronic and photonic applications, particularly in the ultraviolet to infrared spectrum where sulfide materials offer wide bandgap properties and transparency windows unavailable in conventional oxides. While not yet widely commercialized, CaAl2S4 and related alkaline earth metal aluminides are investigated as potential hosts for rare-earth doping in phosphors, scintillators, and luminescent devices, as well as in semiconductor applications where sulfide-based materials can provide superior performance compared to oxide alternatives.

optoelectronic researchphosphor hostsscintillation detectorswide-bandgap semiconductorsphotonic materials developmentrare-earth luminescence

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Density(ρ)
—
kg/m³——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
—
eV——
Seebeck Coefficient(S)
—
µV/K——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
—
eV/atom——
Formation Energy(ΔHf)
—
eV/atom——
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.