S4 Fe1 Cu2 Ge1

semiconductor

· S4 Fe1 Cu2 Ge1

S4Fe1Cu2Ge1 is a quaternary semiconductor compound combining sulfur, iron, copper, and germanium in a fixed stoichiometric ratio. This is an experimental material composition positioned within the broader family of mixed-metal chalcogenides and multinary semiconductors, which are actively researched for optoelectronic and energy conversion applications. The combination of earth-abundant elements (iron, copper) with chalcogen and group-IV components suggests potential for photovoltaic devices, thermoelectric generators, or photoelectrochemical systems where cost-effectiveness and scalability are critical—though practical applications remain largely in the research phase pending demonstration of device-level performance and manufacturing feasibility.

photovoltaic researchthin-film solar cellsthermoelectric devicesphotoelectrochemical water splittingsemiconductor compound developmentearth-abundant material alternatives

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	10,819.8	ksi	—
Shear Modulus(G)	4,623.8	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.03740	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.3860	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.

S4 Fe1 Cu2 Ge1

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control