CuIn5S8

semiconductor

· CuIn5S8

CuIn5S8 is a quaternary semiconductor compound belonging to the chalcogenide family, specifically a copper-indium sulfide variant with potential for thin-film photovoltaic and optoelectronic applications. This material is primarily of research and developmental interest rather than established industrial production, investigated for its semiconducting properties in solar cells, photodetectors, and light-emitting devices as an alternative to more common Cu(In,Ga)Se₂ systems. Engineers considering this compound should recognize it as an emerging material where composition tuning and layer engineering remain active development areas; it offers potential cost or performance advantages over conventional indium-gallium-based absorbers but requires further optimization for commercial viability.

thin-film photovoltaicssolar cellsphotodetectorsoptoelectronic devicesresearch semiconductorschalcogenide absorbers

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.340	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.

CuIn5S8

Electrical Properties

Regulatory Screening

Environmental

Export Control