Lu1 Cu1 S2

semiconductor

· Lu1 Cu1 S2

LuCuS₂ is a ternary chalcogenide semiconductor compound combining lutetium, copper, and sulfur in a 1:1:2 stoichiometric ratio. This material belongs to the family of transition metal chalcogenides and is primarily investigated in research contexts for optoelectronic and photovoltaic applications, where the combination of rare-earth and transition-metal elements can yield tunable bandgaps and interesting photon-absorption characteristics. LuCuS₂ represents an understudied composition within the broader class of multinary sulfides that show promise for thin-film solar cells, photodetectors, and other semiconductor devices where rare-earth doping or mixed-metal coordination offers advantages over conventional binary or ternary semiconductors.

Photovoltaic researchPhotodetector developmentThin-film semiconductorsOptoelectronic devicesRare-earth semiconductor research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.537	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.488	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.

Lu1 Cu1 S2

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control