CdGa2Se4 — Properties & Data | MatWorld

CdGa2Se4

Name: CdGa2Se4
Brand: MatWorld

semiconductor

· CdGa2Se4

CdGa₂Se₄ is a ternary II-VI semiconductor compound combining cadmium, gallium, and selenium in a chalcopyrite crystal structure. This material is primarily investigated for optoelectronic and photovoltaic applications, particularly in research contexts exploring wide-bandgap semiconductors for high-efficiency solar cells, radiation detectors, and infrared optical devices. Engineers consider CdGa₂Se₄ when conventional binary semiconductors (GaAs, CdSe) cannot meet bandgap or lattice-matching requirements, though its commercial adoption remains limited compared to established alternatives, making it most relevant for specialized R&D projects rather than high-volume manufacturing.

photovoltaic cellsradiation detectioninfrared opticssemiconductor researchwide-bandgap deviceslattice-matched heterostructures

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	5,395.4	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2700	-	DFT · OptB88vdW
Shear Modulus(G)	3,153.1	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1854	lb/in³	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	2.750	eV	Measured
↳	1.318	eV	DFT · OptB88vdW
↳	2.723	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	11.48	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	8.455	-	DFT · OptB88vdW
↳	5.889	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.1600	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.030	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.5880	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000306	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00233	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-52.25	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	336.7	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	8.470	%	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.6111	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.

CdGa2Se4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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