Cu0.5Ga1.5Se2.5

semiconductor

· Cu0.5Ga1.5Se2.5

Cu₀.₅Ga₁.₅Se₂.₅ is a quaternary semiconductor compound belonging to the I-III-VI₂ family, structurally related to chalcopyrite semiconductors. This material is primarily of research interest for photovoltaic and optoelectronic applications, where its tunable bandgap and direct band structure make it a candidate for thin-film solar cells, photodetectors, and light-emitting devices. While not yet commercialized at scale, compounds in this family are being investigated as alternatives to conventional cadmium telluride (CdTe) and copper indium gallium selenide (CIGS) absorbers, offering potential advantages in cost, toxicity, and device efficiency through compositional engineering.

thin-film photovoltaicsphotodetectorsoptoelectronic researchsemiconductor absorbersbandgap engineeringemerging solar technologies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.760	eV	—

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.

Cu0.5Ga1.5Se2.5

Electrical Properties

Regulatory Screening

Environmental

Export Control