Ge4 S4

semiconductor

· Ge4 S4

Ge4S4 is a binary germanium sulfide compound belonging to the family of chalcogenide semiconductors, materials combining group IV elements with sulfur. This composition represents a specific stoichiometry within the Ge-S system that exhibits semiconducting behavior and is primarily of research interest for optoelectronic and photonic applications where infrared transparency and nonlinear optical properties are valuable. The material is not widely established in high-volume industrial production but is investigated in academic and specialized materials development contexts for potential use in infrared optics, all-optical switching, and next-generation photonic devices.

infrared opticschalcogenide glass researchnonlinear optical devicesphotonic materialssemiconductor researchoptical switching

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.320	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.3600	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.

Ge4 S4

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control