Li2 Er2 Se4

semiconductor

· Li2 Er2 Se4

Li₂Er₂Se₄ is an ternary semiconductor compound combining lithium, erbium, and selenium—a rare-earth chalcogenide that belongs to the family of materials explored for optoelectronic and photonic applications. This is primarily a research-phase material rather than a commodity semiconductor; compounds in this family are investigated for their potential in infrared emission, laser materials, and solid-state lighting due to the rare-earth element's luminescent properties and the chalcogenide's transparency across specific wavelength regions. Engineers considering this material would be working on advanced photonics or emerging quantum/optoelectronic devices where conventional semiconductors (Si, GaAs) are unsuitable for mid-infrared operation or rare-earth dopant functionality.

infrared optoelectronicsrare-earth photonicssolid-state lighting researchquantum optics materialslaser host materialsthin-film optical coatings

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	7,996.4	ksi	—
Shear Modulus(G)	5,305.5	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.665	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.764	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.

Li2 Er2 Se4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control