S4 Fe2 Cu2

semiconductor

· S4 Fe2 Cu2

S4 Fe2 Cu2 is a quaternary semiconductor compound composed of sulfur, iron, and copper elements in a defined stoichiometric ratio. This material belongs to the family of mixed-metal sulfides and represents an emerging research compound rather than an established commercial material, with potential applications in optoelectronic and photovoltaic device structures. The incorporation of multiple transition metals into a sulfide framework offers tunable electronic and optical properties relevant to next-generation thin-film technologies, though the material remains primarily in the development phase.

experimental photovoltaicsthin-film semiconductorsoptoelectronic researchsolar cell absorber layerssemiconductor heterostructuresmaterials research development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00140	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.3410	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 Fe2 Cu2

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control