Fe2 Cu2 S4

semiconductor

· Fe2 Cu2 S4

Fe₂Cu₂S₄ is a mixed-metal sulfide semiconductor compound combining iron and copper in a 1:1 ratio with sulfur, belonging to the family of chalcogenide semiconductors. This material is primarily of research and developmental interest for photovoltaic and thermoelectric applications, where its direct bandgap and mixed-valence structure offer potential advantages over single-metal sulfides in energy conversion efficiency and cost. The Fe–Cu–S system is investigated as an alternative to toxic or scarce-element semiconductors, making it relevant for sustainable electronics and emerging thin-film solar cell architectures.

thin-film photovoltaicsthermoelectric generatorssemiconductor researchlight-harvesting devicessustainable electronicschalcogenide optoelectronics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00150	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.3390	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.

Fe2 Cu2 S4

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control