Cu2ZnSiSe4

semiconductor

· Cu2ZnSiSe4

Cu2ZnSiSe4 is a quaternary semiconducting compound belonging to the chalcogenide family, structurally related to CZTS (copper zinc tin sulfide) photovoltaic absorbers but with selenium and silicon substitution. This is primarily a research-stage material under investigation for thin-film photovoltaic applications, where it offers potential advantages in bandgap tuning and defect tolerance compared to established ternary and quaternary semiconductors. Engineers evaluating this compound should recognize it as an exploratory absorber layer candidate rather than a production-ready material, with relevance to research teams developing next-generation, earth-abundant solar cell technologies.

thin-film photovoltaicssolar absorber layersbandgap engineeringearth-abundant semiconductorsmaterials researchemerging photovoltaic materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	2.330	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.

Cu2ZnSiSe4

Electrical Properties

Regulatory Screening

Environmental

Export Control