In5 Cu1 S8

semiconductor

· In5 Cu1 S8

In₅Cu₁S₈ is a quaternary semiconductor compound belonging to the sulfide family, combining indium, copper, and sulfur in a mixed-valence structure. This material is primarily of research interest for photovoltaic and optoelectronic applications, where its tunable bandgap and potential for earth-abundant alternatives to conventional semiconductors make it an emerging candidate. Compared to widely-used cadmium-based or lead-based semiconductors, copper-indium sulfides offer lower toxicity and access to more abundant elements, though In₅Cu₁S₈ remains largely in experimental development stages for practical device integration.

thin-film photovoltaicssolar cells (research)optoelectronic devicesphotodetectorsbandgap engineeringsemiconductor research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.2056	eV	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.6020	eV/atom	—

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.

In5 Cu1 S8

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control