Al2CdS4 — Properties & Data | MatWorld

Al2CdS4

Name: Al2CdS4
Brand: MatWorld

metal

· Al2CdS4

Al2CdS4 is a quaternary compound semiconductor combining aluminum, cadmium, and sulfur—a member of the I-III-VI2 ternary semiconductor family. This material is primarily of research interest for optoelectronic and photovoltaic applications, where its direct bandgap and semiconducting properties make it a candidate for photodetectors, thin-film solar cells, and light-emitting devices, though industrial adoption remains limited compared to more mature semiconductor systems like CdTe or CIGS. Engineers would consider Al2CdS4 when developing next-generation photovoltaic absorbers or UV-sensitive detectors where the combination of aluminum, cadmium, and sulfur offers tunable electronic properties, though material availability, processing complexity, and cadmium toxicity concerns typically drive selection toward alternative II-VI or I-III-VI compounds in production environments.

thin-film photovoltaicsphotodetectorssemiconductor researchoptoelectronic devicessolar cell absorber layers

Compliance & Regulations

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

Units:

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	38.69	GPa	DFT
↳	43.16	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2800	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	21.64	GPa	DFT
↳	24.93	GPa	DFT · OptB88vdW

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
Density(ρ)	3.075	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)2 entries	2.864	eV	DFT · OptB88vdW
↳	4.171	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)3 entries	8.271	-	DFT · OptB88vdW
↳	8.230	-	DFT · PBE
↳	6.710 range 5.280–8.139median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	5.545	-	DFT · OptB88vdW
↳	4.422	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.5091	C/m²	DFT · OptB88vdW
↳	0.1321	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.000551	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000773	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-83.94	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	446.5	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	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)	-1.106	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

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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.

Al2CdS4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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