Ag2 Bi2 Se4

semiconductor

· Ag2 Bi2 Se4

Ag₂Bi₂Se₄ is a layered quaternary semiconductor compound combining silver, bismuth, and selenium in a fixed stoichiometric ratio. This material belongs to the family of chalcogenide semiconductors and is primarily investigated for thermoelectric and optoelectronic applications where its narrow bandgap and layered crystal structure can be leveraged for energy conversion or photon detection. While not yet widely commercialized, compounds in this material class are of research interest for solid-state cooling devices, infrared sensing, and potentially mid-infrared photonics, where the combination of reasonable mechanical stiffness with semiconductor properties offers advantages over conventional alternatives.

thermoelectric devicesinfrared sensorsresearch semiconductorsoptoelectronic componentssolid-state cooling

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	8,768.4	ksi	—
Shear Modulus(G)	3,477	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000900	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.2370	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.

Ag2 Bi2 Se4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control