Co4 As4 S4

semiconductor

· Co4 As4 S4

Co₄As₄S₄ is a quaternary semiconductor compound combining cobalt, arsenic, and sulfur in a layered or complex crystal structure. This is an experimental research material rather than a commercially established engineering material, belonging to the broader family of ternary and quaternary chalcogenides being investigated for optoelectronic and photovoltaic applications. Interest in this compound stems from its potential as an alternative semiconductor for light-emission, photodetection, or energy conversion devices where traditional materials face limitations in cost, toxicity, or band gap tunability.

experimental semiconductorsphotovoltaic researchphotodetectorsoptoelectronic devicesthin-film applicationsband gap engineering

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	136.9	GPa	—
Shear Modulus(G)	108.0	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.8182	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

Quality & Standards

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.

Co4 As4 S4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control

Quality & Standards