Er2 S2 F2

semiconductor
· Er2 S2 F2

Er₂S₂F₂ is a rare-earth chalcohalide semiconductor compound combining erbium with sulfur and fluorine, representing an emerging class of materials in solid-state chemistry research. This compound belongs to the family of rare-earth fluorosulfides, which are primarily investigated for potential applications in optoelectronics, photonics, and advanced ceramic systems where the combination of ionic bonding (Er-F, Er-S) may enable unique electronic and optical properties. While not yet established in mainstream industrial production, materials in this family are of interest to researchers exploring alternatives to conventional semiconductors, particularly for infrared applications and specialized optical devices where rare-earth dopants provide functional advantages.

research/experimental semiconductorsrare-earth photonicsinfrared optoelectronicsadvanced ceramic systemssolid-state physics researchspecialty optical materials

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
—
ksi——
Shear Modulus(G)
—
ksi——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
—
eV——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
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.