Ga2NiS4

metal
· Ga2NiS4

Ga₂NiS₄ is a ternary metal sulfide compound combining gallium, nickel, and sulfur, belonging to the family of chalcogenide semiconductors and mixed-metal sulfides. This material is primarily of research interest for optoelectronic and photovoltaic applications, where its electronic structure and light-absorption properties are being investigated as a potential absorber layer or window material in thin-film solar cells and photoelectrochemical devices. Engineers and researchers consider this compound because its multi-metal composition offers tunable bandgap properties and the potential for improved light harvesting compared to binary sulfides, though it remains largely in the experimental phase without widespread commercial adoption.

thin-film photovoltaicssemiconductor researchphotoelectrochemical cellsoptoelectronic devicesexperimental absorber layersbandgap engineering

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)2 entries
20.17
GPa—
↳
46.90
GPa—
Poisson's Ratio(ν)
0.2900
-—
Shear Modulus(G)2 entries
12.26
GPa—
↳
24.88
GPa—
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
Density(ρ)
3.937
kg/m³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)2 entries
0.000
eV—
↳
0.000
eV—
Magnetic Moment(μB)
1.555
µB—
Seebeck Coefficient(S)
11.51
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)
0.05710
eV/atom—
Formation Energy(ΔHf)
-0.5896
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.