Ag2 Au2 S4

semiconductor

· Ag2 Au2 S4

Ag₂Au₂S₄ is a mixed-metal sulfide semiconductor compound combining silver and gold in a 1:1 ratio with sulfur, belonging to the family of precious-metal chalcogenides. This is primarily a research material rather than an established commercial compound; it is studied for potential optoelectronic and photocatalytic applications where the combination of two noble metals might enable tunable bandgap behavior, enhanced light absorption, or improved catalytic activity compared to single-metal sulfide alternatives.

photocatalysis researchoptoelectronic semiconductorssolar energy conversionmaterials science R&Dthin-film deposition studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.01520	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	0.08100	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 Au2 S4

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control