Cs2Cu2Sb2S5

semiconductor

· Cs2Cu2Sb2S5

Cs₂Cu₂Sb₂S₅ is a quaternary sulfide semiconductor compound combining cesium, copper, antimony, and sulfur in a layered crystal structure. This material belongs to the family of metal chalcogenides and is primarily investigated in research contexts for photovoltaic and thermoelectric applications, where its tunable bandgap and mixed-valence copper chemistry offer potential advantages over conventional semiconductors.

photovoltaic devicesthin-film solar cellsthermoelectric generatorssemiconductor researchoptoelectronic materialsnext-generation absorbers

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.600	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.

Cs2Cu2Sb2S5

Electrical Properties

Regulatory Screening

Environmental

Export Control