Ag2 Bi2 S2 Cl4

semiconductor

· Ag2 Bi2 S2 Cl4

Ag₂Bi₂S₂Cl₄ is a mixed-halide chalcogenide semiconductor compound combining silver, bismuth, sulfur, and chlorine in a layered crystal structure. This material belongs to an emerging class of multinary semiconductors being investigated for optoelectronic and photovoltaic applications, particularly where low-toxicity alternatives to lead halide perovskites are needed. The combination of heavy metals (Bi, Ag) and chalcogen/halide ligands creates tunable electronic properties, making it primarily a research-phase compound with potential for thin-film solar cells, photodetectors, and scintillation devices.

lead-free perovskite alternativesthin-film photovoltaics (experimental)photodetectors and imaging sensorshalide semiconductor researchoptoelectronic devices (early stage)non-toxic semiconductor exploration

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	7,082.6	ksi	—
Shear Modulus(G)	2,599.1	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.093	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.6680	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 S2 Cl4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control