Cu0.5In1.5Se2.5

semiconductor

· Cu0.5In1.5Se2.5

Cu₀.₅In₁.₅Se₂.₅ is a quaternary semiconductor compound belonging to the chalcopyrite family, specifically a copper-indium-selenide (CIS) derivative with partial copper substitution. This material is investigated primarily in photovoltaic research as an absorber layer for thin-film solar cells, where its tunable bandgap and high optical absorption coefficient offer potential advantages over binary and ternary CIS compounds. The copper-deficient composition and indium-rich stoichiometry are tailored to optimize optoelectronic performance, though this remains largely an experimental compound; the broader CIS/CIGS family is well-established in commercial thin-film photovoltaic technology.

thin-film photovoltaic absorber layerssolar cells and modulesbandgap engineering researchlight absorption optimizationexperimental semiconductor devicesrenewable energy applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.240	eV	—

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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.

Cu0.5In1.5Se2.5

Electrical Properties

Regulatory Screening

Environmental

Export Control