CdGa2S4 — Properties & Data | MatWorld

CdGa2S4

Name: CdGa2S4
Brand: MatWorld

semiconductor

· CdGa2S4

CdGa2S4 is a ternary II-VI semiconductor compound combining cadmium, gallium, and sulfur in a defect chalcopyrite crystal structure. This material is primarily investigated in photovoltaic and optoelectronic research contexts, particularly for thin-film solar cells and infrared detectors where its direct bandgap and optical properties offer advantages over binary alternatives like CdS or GaAs. Its notable feature is a tunable bandgap and strong photon absorption characteristics that make it attractive for multijunction solar cell designs and specialized imaging applications, though it remains largely in the research and development phase rather than high-volume production.

thin-film photovoltaicsinfrared detectorsoptoelectronic researchmultijunction solar cellsX-ray scintillatorsradiation detection

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	42.37	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2800	-	DFT · OptB88vdW
Shear Modulus(G)	24.74	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	3.940	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	3.440	eV	Measured
↳	2.113	eV	DFT · OptB88vdW
↳	3.706	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	9.865	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.618	-	DFT · OptB88vdW
↳	4.905	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.2467	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.967	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.6040	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000457	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00163	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-70.90	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	381.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.5500	%	DFT · TBmBJ

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, or test environment.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.7460	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

CdGa2S4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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