Na4 As4 S8

semiconductor

· Na4 As4 S8

Na₄As₄S₈ is an inorganic semiconductor compound belonging to the arsenic sulfide family, combining sodium, arsenic, and sulfur in a mixed-valence framework structure. This is primarily a research material studied for its semiconducting and photonic properties rather than a widely commercialized engineering material; it represents exploration within chalcogenide semiconductor systems that show promise for nonlinear optics, solid-state ion conduction, and potential photovoltaic applications where arsenic-sulfur compounds offer tunable band gaps and optical transparency windows.

experimental semiconductorssolid-state ionic conductorsnonlinear optical materialsphotonic researchchalcogenide glass systemsenergy storage (research phase)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	3,334.3	ksi	—
Shear Modulus(G)	1,797.5	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.271	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.6890	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.

Na4 As4 S8

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control

Quality & Standards