In5CuS8

semiconductor
· In5CuS8

In₅CuS₈ is a quaternary sulfide semiconductor compound belonging to the metal chalcogenide family, combining indium, copper, and sulfur in a structured crystalline lattice. This material is primarily of research interest for photovoltaic and optoelectronic applications, where its band gap and electronic properties position it as a potential absorber layer or window material in thin-film solar cells and photodetectors. Compared to more established semiconductors like CdTe or CIGS, In₅CuS₈ offers the advantage of using abundant, non-toxic elements while potentially delivering competitive optical and transport properties, though it remains largely in the development phase with limited commercial deployment.

thin-film photovoltaicssolar absorber layersphotodetectorsoptoelectronic devicesmaterials research

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Density(ρ)
4.704
kg/m³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)2 entries
1.340
eV
0.2930
range 0.000–0.5860median of 2 measurements
eV
Magnetic Moment(μB)
0.000
µB
Seebeck Coefficient(S)
-39.31
µV/K
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.000
eV/atom
Formation Energy(ΔHf)
-0.6016
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.