CuInGeSe4

semiconductor

· CuInGeSe4

CuInGeSe4 is a quaternary semiconductor compound belonging to the I-III-IV-VI family, combining copper, indium, germanium, and selenium in a crystalline structure. This material is primarily investigated for photovoltaic and optoelectronic applications as an alternative to conventional ternary chalcopyrite semiconductors, offering tunable bandgap and potential cost advantages through adjusted composition. While not yet widely deployed commercially, CuInGeSe4 represents an active research direction in thin-film solar cells and photodetectors, competing with materials like CIGS (CuInGaSe2) and CdTe by providing compositional flexibility and improved stability in certain device configurations.

thin-film solar cellsphotovoltaic researchphotodetectorsoptoelectronic devicesbandgap engineeringexperimental semiconductors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.300	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.

CuInGeSe4

Electrical Properties

Regulatory Screening

Environmental

Export Control