K2 Cu8 As2 S8

semiconductor

· K2 Cu8 As2 S8

K2Cu8As2S8 is a complex quaternary semiconductor compound combining potassium, copper, arsenic, and sulfur elements. This material belongs to the family of mixed-metal chalcogenides and is primarily of research interest rather than established industrial production, being studied for its electronic and optical properties in experimental solid-state applications.

photovoltaic researchsolid-state electronicsthermoelectric materials developmentoptical semiconductorsmaterials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	44.90	GPa	—
Shear Modulus(G)	19.16	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.336	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.4410	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.

K2 Cu8 As2 S8

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control