Sb2Se3 — Properties & Data | MatWorld

Sb2Se3

Name: Sb2Se3
Brand: MatWorld

semiconductor

· Sb2Se3

Antimony selenide (Sb₂Se₃) is a layered chalcogenide semiconductor compound with a narrow bandgap, belonging to the V-VI semiconductor family. It is primarily investigated for photovoltaic applications, particularly as an absorber layer in thin-film solar cells where its one-dimensional crystal structure and favorable optical properties offer advantages over conventional silicon or CdTe-based devices. Sb₂Se₃ is also explored in thermoelectric energy conversion and infrared optics, making it notable for next-generation renewable energy and sensing systems where cost-effective, non-toxic alternatives to lead-halide perovskites or other heavy-metal semiconductors are sought.

thin-film photovoltaic absorbersnext-generation solar cellsthermoelectric devicesinfrared optics and detectorsexperimental semiconductor researchlow-toxicity energy conversion

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	28.91	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3100	-	DFT · OptB88vdW
Shear Modulus(G)	14.63	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	5.645	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	1.200	eV	Measured
↳	0.8750	eV	DFT · OptB88vdW
↳	1.454	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	63.53	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	20.36	-	DFT · OptB88vdW
↳	14.82	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	1.300	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.237	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00294	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00160	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-251.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	254.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	32.95	%	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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.2684	eV/atom	DFT · OptB88vdW
↳	-0.2645	eV/atom	Measured

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

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

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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.

Sb2Se3

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