Co2 As2 S2

semiconductor

· Co2 As2 S2

Co₂As₂S₂ is a ternary chalcogenide semiconductor compound combining cobalt, arsenic, and sulfur in a layered crystal structure. This material is primarily investigated in condensed matter physics and materials research rather than established industrial production, with interest focused on its potential as a thermoelectric material, photovoltaic absorber, or component in optoelectronic devices due to its narrow bandgap and layered electronic properties characteristic of chalcogenide systems.

Research thermoelectricsInfrared detectorsExperimental photovoltaicsCondensed matter studiesOptoelectronic devices (exploratory)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00150	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.4920	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.

Co2 As2 S2

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control