Li1 Fe1 Cu1 S2

semiconductor

· Li1 Fe1 Cu1 S2

Li₁Fe₁Cu₁S₂ is a ternary sulfide semiconductor compound combining lithium, iron, and copper in a layered or mixed-valence crystal structure. This is a research-phase material primarily of interest in energy storage and photovoltaic applications, where multi-metal sulfides are being explored for improved ionic conductivity, electron transport, or light absorption compared to binary alternatives. The compound belongs to the broader family of transition-metal sulfides and is notable for potentially combining the lithium-ion transport pathways (relevant to battery electrolytes) with the electronic properties of iron-copper sulfides (used in photocatalysis and thin-film solar devices).

battery electrolytes and solid-state conductorsphotovoltaic absorber layersphotocatalytic water splittingemerging semiconductor researchenergy storage materials development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00180	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.6010	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.

Li1 Fe1 Cu1 S2

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control