Al2 Cu2 S4

semiconductor

· Al2 Cu2 S4

Al₂Cu₂S₄ is a quaternary semiconductor compound combining aluminum, copper, and sulfur elements, belonging to the family of metal chalcogenides with potential for optoelectronic and photovoltaic applications. This material is primarily of research interest rather than established in high-volume production; it is investigated for its semiconducting properties and potential use in thin-film solar cells, photodetectors, and other quantum-confined systems where the unique band structure of mixed-metal sulfides offers advantages in light absorption and charge carrier transport compared to single-element semiconductors.

photovoltaic researchthin-film solar cellsphotodetectorssemiconductor opticsexperimental electronicsmaterials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	82.70	GPa	—
Shear Modulus(G)	37.16	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.896	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.9430	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.

Al2 Cu2 S4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control