Cu0.4In1.6Se2.6

semiconductor

· Cu0.4In1.6Se2.6

Cu0.4In1.6Se2.6 is a ternary chalcogenide semiconductor compound belonging to the I–III–VI family, related to the CuInSe2 system used in photovoltaic absorber layers. This material is primarily studied in research contexts for thin-film solar cell applications, where controlled copper deficiency and indium excess are explored to optimize bandgap and carrier transport properties. It represents an experimental composition variant designed to improve efficiency and stability compared to stoichiometric CuInSe2, making it relevant for next-generation photovoltaic device engineering.

thin-film solar cellsphotovoltaic absorber layersCIGS solar technologybandgap engineeringoptoelectronic researchlight harvesting devices

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.320	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.

Cu0.4In1.6Se2.6

Electrical Properties

Regulatory Screening

Environmental

Export Control