Au4 Br4

semiconductor

· Au4 Br4

Au4Br4 is an experimental organometallic semiconductor compound consisting of gold and bromine in a 1:1 stoichiometric ratio. This material belongs to the family of metal halide semiconductors, which are of significant interest in emerging optoelectronic applications due to their tunable bandgap and potential for solution-based processing. While not yet commercialized, Au4Br4 represents the broader research effort to develop lead-free halide perovskites and related structures for next-generation photovoltaics, light-emitting devices, and photodetectors, offering potential advantages in stability and tunability compared to conventional inorganic semiconductors.

experimental optoelectronics researchnext-generation photovoltaicslight-emitting devicesphotodetectorshalide semiconductor alternativeslead-free semiconductor development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	2,779.9	ksi	—
Shear Modulus(G)	1,105.2	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.504	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.08800	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.

Au4 Br4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control