MgCu2GeS4

semiconductor

· MgCu2GeS4

MgCu2GeS4 is a quaternary chalcogenide semiconductor compound combining magnesium, copper, germanium, and sulfur. This material belongs to the family of ternary and quaternary sulfides, which are of interest for photovoltaic and thermoelectric applications due to their tunable bandgap and mixed-valence cation chemistry. As a research-stage compound, MgCu2GeS4 has not yet achieved widespread commercial deployment but represents the broader strategy of designing Earth-abundant semiconductor alternatives to conventional III–V and I–III–VI2 systems for solar cells, light emission, and solid-state energy conversion.

thin-film photovoltaics (research)thermoelectric energy harvestingvisible light emitterssemiconductor heterostructuresEarth-abundant material substitutionoptoelectronic device engineering

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	3.722	kg/m³	—

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

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.360	eV	—
↳	0.6830	eV	—
Magnetic Moment(μB)	0.000	µB	—

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.02060	eV/atom	—
Formation Energy(ΔHf)	-0.6779	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.

MgCu2GeS4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control