Er2 S4

semiconductor

· Er2 S4

Er₂S₄ is a rare-earth sulfide semiconductor compound containing erbium, belonging to the family of lanthanide chalcogenides. This material is primarily of research interest rather than widespread industrial use, investigated for its potential in infrared optics, photonics, and solid-state lighting applications due to erbium's characteristic emission wavelengths in the near-infrared region.

infrared optics and sensorsphotonic devicesrare-earth semiconductor researchfiber optic amplifiers (potential)solid-state lighting development

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.01000	eV	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.838	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.

Er2 S4

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control