CdCu2SnS4

semiconductor
· CdCu2SnS4

CdCu₂SnS₄ is a quaternary chalcogenide semiconductor compound combining cadmium, copper, tin, and sulfur into a tetragonal crystal structure. This material is primarily investigated in photovoltaic and optoelectronic research contexts as a potential absorber layer for thin-film solar cells and as an alternative to traditional CIGS (copper indium gallium selenide) absorbers. While not yet commercialized at production scale, CdCu₂SnS₄ is notable within the kesterite and stannite compound family for its tuneable bandgap, earth-abundant constituent elements (particularly the substitution of indium with tin), and potential for cost-effective photovoltaic devices; however, engineers should be aware that cadmium toxicity and processing complexity remain barriers to widespread industrial adoption compared to established alternatives.

thin-film photovoltaic absorberssolar cells (experimental)optoelectronic deviceslight-emitting applicationschalcogenide semiconductorsmaterials research

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
9,659.5
ksi—
Poisson's Ratio(ν)
0.3500
-—
Shear Modulus(G)
3,553.4
ksi—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
0.1684
lb/in³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)2 entries
1.370
eV—
↳
0.01900
eV—
Magnetic Moment(μB)
0.000
µB—
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)
0.00690
eV/atom—
Formation Energy(ΔHf)
-0.4675
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.
CdCu2SnS4 — Properties & Data | MatWorld