RuS2 — Properties & Data | MatWorld

RuS2

Name: RuS2
Brand: MatWorld

semiconductor

· RuS2

Ruthenium disulfide (RuS₂) is a transition metal dichalcogenide semiconductor with a pyrite crystal structure, belonging to the family of layered and three-dimensional metal sulfides used in emerging electronic and energy applications. While primarily a research material rather than a production-scale commodity, RuS₂ is investigated for photocatalysis, electrocatalysis (particularly hydrogen evolution and oxygen reduction), and next-generation thermoelectric devices due to its favorable electronic band structure and chemical stability. Engineers consider RuS₂ when designing catalytic systems that require high activity and durability, or when exploring beyond-silicon semiconductors for niche optoelectronic or energy conversion roles where conventional materials reach performance limits.

photocatalytic water splittingelectrocatalysts (HER/ORR)thermoelectric devicesnext-generation semiconductorsresearch/laboratory applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	24,762.3	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2100	-	DFT · OptB88vdW
Shear Modulus(G)	18,199.3	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2179	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	0.5970	eV	DFT · OptB88vdW
↳	1.112	eV	DFT · TBmBJ
↳	1.800	eV	Measured
Dielectric Constant (Relative Permittivity)(εr)2 entries	20.69	-	DFT · PBE
↳	18.75 range 16.56–20.95median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	16.64	-	DFT · OptB88vdW
↳	16.70	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.3700	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.790	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000629	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00159	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-98.70	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	488.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.63	%	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	-0.6457	eV/atom	DFT · OptB88vdW
↳	-0.7113	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.

RuS2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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