Li2FeSnS4

semiconductor
· Li2FeSnS4

Li₂FeSnS₄ is a quaternary sulfide semiconductor compound containing lithium, iron, tin, and sulfur—part of an emerging class of multinary semiconductors being investigated for next-generation energy storage and photovoltaic applications. This material remains primarily in the research and development phase, with interest driven by its potential for lower toxicity compared to lead-based semiconductors and its layered sulfide structure, which can offer tunable band gaps and ionic conductivity. Engineers evaluating this compound should treat it as an exploratory material suitable for prototyping advanced batteries, solar cells, or thermoelectric devices where earth-abundant element composition and unconventional band structures provide advantages over conventional single-junction semiconductors.

lithium-ion battery cathodes/anodesthin-film photovoltaicsthermoelectric energy conversionsolid-state electrolytesresearch photocatalystsnext-generation semiconductors

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Band Gap(Eg)
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eV——
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.
Li2FeSnS4 — Properties & Data | MatWorld