SeS

Name: SeS
Brand: MatWorld

semiconductor

· SeS

Selenium sulfide (SeS) is a binary semiconductor compound combining selenium and sulfur, belonging to the chalcogenide material family. It is primarily investigated in research and emerging applications for optoelectronic devices, photovoltaics, and infrared sensing systems where its narrow bandgap and optical properties offer potential advantages. The material remains largely in the experimental phase compared to more established semiconductors, but shows promise in specialized applications requiring combined thermal stability and semiconducting behavior in the chalcogenide class.

infrared detectorsphotovoltaic researchoptoelectronic devicesthermal imaging sensorsthin-film electronicsmaterials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	11,120	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.4200	-	DFT · OptB88vdW
Shear Modulus(G)	2,059.5	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1645	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	1.900	eV	Measured
↳	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	1.200e-7	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	1.500e-7	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	0.06000	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.07000	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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)	0.2985	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.2898	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.

SeS — Properties & Data | MatWorld

SeS

Mechanical Properties

Physical Properties

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Regulatory Screening

Environmental

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