Li4 Cu4 S4

semiconductor
· Li4 Cu4 S4

Li₄Cu₄S₄ is an experimental quaternary semiconductor compound combining lithium, copper, and sulfur elements, representing an emerging class of mixed-metal chalcogenides being investigated for energy storage and photovoltaic applications. This material belongs to the family of sulfide-based semiconductors that has garnered research interest for solid-state battery electrolytes, photoelectrochemical devices, and thermoelectric systems due to the favorable electrochemical properties of lithium-copper-sulfur combinations. As a research-phase compound rather than a commercial material, it is primarily of interest to materials scientists and battery technologists exploring alternatives to conventional oxide-based semiconductors and solid electrolytes with potentially improved ionic conductivity and electronic tunability.

solid-state battery electrolytesphotovoltaic researchthermoelectric devicesphotoelectrochemical conversionion-conducting membranesexperimental semiconductor research

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
—
ksi——
Shear Modulus(G)
—
ksi——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
—
eV——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
—
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.
Li4 Cu4 S4 — Properties & Data | MatWorld