Na4 S4 Co2

semiconductor

· Na4 S4 Co2

Na₄S₄Co₂ is an experimental sulfide-based semiconductor compound containing sodium, sulfur, and cobalt. This material belongs to the family of mixed-metal sulfides under investigation for advanced electrochemical and photovoltaic applications, where the combination of earth-abundant elements and tunable electronic properties offers potential advantages over conventional semiconductors. While primarily in the research phase, materials of this composition are of interest for energy storage, catalysis, and optoelectronic devices where cost-effectiveness and the ability to engineer band gaps through stoichiometric variation are valued.

experimental energy storage materialsphotocatalysis researchbattery electrode materialsthin-film semiconductorsnext-generation solar cellselectrochemical catalysts

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	5,724.2	ksi	—
Shear Modulus(G)	2,314.8	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00840	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.8320	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.

Na4 S4 Co2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control