Cu0.9Ga1.1Se2.1

semiconductor

· Cu0.9Ga1.1Se2.1

Cu0.9Ga1.1Se2.1 is a chalcopyrite-based semiconductor compound, a copper–gallium selenide system with a slight gallium excess and selenium stoichiometry deviation from the ideal CuGaSe₂ structure. This material is primarily investigated in photovoltaic and optoelectronic research contexts, belonging to the I–III–VI₂ semiconductor family with potential for high-efficiency thin-film solar cells and related light-harvesting devices; it differs from its stoichiometric counterpart through engineered defect states and band-gap tuning achieved via compositional variation.

thin-film photovoltaicssolar cell absorber layersoptoelectronic research deviceslight detection/sensingnext-generation semiconductor researchband-gap engineering

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.590	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.

Cu0.9Ga1.1Se2.1

Electrical Properties

Regulatory Screening

Environmental

Export Control