KAg2SbS4

Name: KAg2SbS4
Brand: MatWorld

semiconductor

· KAg2SbS4

KAg2SbS4 is a quaternary sulfide semiconductor compound containing potassium, silver, and antimony. This material belongs to the family of multinary chalcogenides, which are primarily investigated for optoelectronic and photovoltaic applications due to their tunable bandgaps and ionic-electronic dual conduction pathways. As a research-phase compound, KAg2SbS4 is of interest in the semiconductor community for non-linear optical devices, solid-state ion conductors, and next-generation photovoltaic absorber layers, though industrial adoption remains limited compared to established alternatives like CdTe or perovskites.

thin-film photovoltaicsnon-linear optical devicessolid-state ionic conductorsresearch semiconductorsinfrared optoelectronicsnext-generation solar absorbers

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	6,066.9	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3600	-	DFT · OptB88vdW
Shear Modulus(G)	1,708.5	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1496	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	0.2440	eV	DFT · OptB88vdW
↳	1.450	eV	DFT · TBmBJ
↳	2.200	eV	Measured
Dielectric Constant (Relative Permittivity)(εr)	13.41	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	8.036	-	DFT · OptB88vdW
↳	4.931	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.3876	C/m²	DFT · OptB88vdW
↳	0.1178	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.000382	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000962	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-73.66	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	159.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.01	%	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)	0.02150	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.4305	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.

KAg2SbS4 — Properties & Data | MatWorld

KAg2SbS4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control