S4 Er2

semiconductor

· S4 Er2

S4 Er2 is an erbium-containing semiconductor compound, likely part of the rare-earth or erbium chalcogenide family used in advanced optoelectronic and photonic applications. This material is of particular interest in research and specialized industrial contexts where erbium's unique optical properties—especially its 1.5 µm emission wavelength matching telecommunications fiber windows—provide advantages for signal amplification, laser systems, and integrated photonics. Compared to more conventional semiconductors, erbium compounds enable wavelength-specific functionality difficult to achieve with silicon or III-V semiconductors, making them valuable for next-generation optical communication and sensing systems.

optical fiber amplifierstelecommunications wavelength conversionintegrated photonicsrare-earth lasersquantum information systemsadvanced optoelectronic research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00440	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.1440	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.

S4 Er2

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control