Ba4 Ge2 Se8

semiconductor

· Ba4 Ge2 Se8

Ba₄Ge₂Se₈ is a quaternary chalcogenide semiconductor compound combining barium, germanium, and selenium in a layered crystal structure. This material is primarily of research interest rather than established commercial use, belonging to the family of heavy-metal chalcogenides that show potential for nonlinear optical, thermoelectric, and infrared photonic applications. The barium-germanium-selenide system is investigated for wide bandgap semiconductor behavior and phase-matching capabilities in frequency conversion and sensing devices where traditional materials like gallium arsenide or zinc selenide reach their limits.

nonlinear optical materialsinfrared photonics researchthermoelectric devicesfrequency conversionwide-bandgap semiconductorssolid-state laser development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.260	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.420	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.

Ba4 Ge2 Se8

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control