ErS

ceramic
· JVASP-19781· ErS

Erbium sulfide (ErS) is a rare-earth ceramic compound belonging to the family of lanthanide chalcogenides, characterized by strong ionic bonding between erbium cations and sulfide anions. While primarily investigated in research contexts for optoelectronic and photonic applications, ErS and related rare-earth sulfides are explored for their potential in infrared optics, phosphor materials, and semiconductor devices where the unique electronic properties of rare-earth elements offer advantages over conventional ceramics. The material represents an emerging class of functional ceramics rather than an established industrial commodity, with continued development focused on synthesizing high-purity forms and understanding its performance in specialized optical and thermal applications.

infrared optics and windowsrare-earth phosphor researchhigh-temperature ceramicsphotonic and optoelectronic devicesthermal conductivity studiesexperimental semiconductor applications

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)
Pa
Poisson's Ratio(ν)
-
Shear Modulus(G)
Pa
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
kg/m³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
median of 2 measurements
eV
Magnetic Moment(μB)
µB
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

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.