CuAlSe2

semiconductor

· CuAlSe2

CuAlSe2 is a ternary chalcopyrite semiconductor compound composed of copper, aluminum, and selenium, belonging to the I-III-VI₂ family of semiconductors. It is primarily investigated in photovoltaic research and optoelectronic device development, particularly as a potential absorber layer for thin-film solar cells and as an alternative to more common chalcopyrite materials like CuInSe2; its appeal lies in the use of aluminum (more abundant than indium) and its adjustable bandgap, though commercial adoption remains limited compared to mature thin-film technologies.

thin-film photovoltaicssolar cell absorber layersoptoelectronic researchIR detectorsexperimental semiconductor devices

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	2.700	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.

CuAlSe2

Electrical Properties

Regulatory Screening

Environmental

Export Control