CuGeS2

metal

· JVASP-155374· CuGeS2

CuGeS₂ is a ternary chalcogenide compound combining copper, germanium, and sulfur, belonging to the family of metal sulfides investigated for semiconductor and optoelectronic applications. This material is primarily of research interest rather than established industrial production, with potential applications in photovoltaic devices, thermoelectric systems, and infrared optics where its electronic band structure and light-absorption properties are exploited. Engineers would consider this compound when designing next-generation thin-film solar cells or thermal energy conversion systems where earth-abundant alternatives to cadmium telluride or lead halide perovskites are needed.

photovoltaic thin filmsthermoelectric devicesinfrared detectorssemiconductor researchoptoelectronic materialssolar cell absorber layers

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	4.037	kg/m³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.3470	eV	—
Magnetic Moment(μB)	0.000	µB	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.09300	eV/atom	—
Formation Energy(ΔHf)	-0.2841	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.

CuGeS2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control