CdCu2SnSe4

semiconductor
· CdCu2SnSe4

CdCu2SnSe4 is a quaternary chalcogenide semiconductor compound combining cadmium, copper, tin, and selenium—a member of the I-II-IV-VI semiconductor family with potential for photovoltaic and thermoelectric applications. This material is primarily of research interest rather than established industrial production; it is investigated for thin-film solar cells and intermediate-band photovoltaic devices due to its tunable bandgap and mixed-valence structure. The copper-tin-selenium framework offers potential advantages over simpler binary or ternary semiconductors in tailoring optical and thermal transport properties for next-generation energy conversion devices, though commercialization remains limited compared to established CdTe or CIGS photovoltaic absorbers.

thin-film photovoltaicssolar cell absorber layersthermoelectric devicesintermediate-band semiconductorsoptoelectronic research

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
8,017.7
ksi—
Poisson's Ratio(ν)
0.3500
-—
Shear Modulus(G)
3,015.3
ksi—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
0.2003
lb/in³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)2 entries
0.9600
eV—
↳
0.1750
range 0.000–0.3500median of 2 measurements
eV—
Dielectric Constant (Relative Permittivity)(εr)
565.4
-—
Magnetic Moment(μB)
0.000
µB—
Piezoelectric Modulus(eij)
1.754
C/m²—
Seebeck Coefficient(S)
-110.3
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)
0.02210
eV/atom—
Formation Energy(ΔHf)
-0.3586
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.
CdCu2SnSe4 — Properties & Data | MatWorld