Tb3Si2S8I — Properties & Data | MatWorld

Tb3Si2S8I

ceramic

· JVASP-57065· Tb3Si2S8I

Tb3Si2S8I is a rare-earth chalcohalide ceramic compound combining terbium, silicon, sulfur, and iodine elements. This is a research-phase material studied for its potential in optoelectronic and solid-state applications, particularly in photonic devices and thermal management systems where rare-earth-doped ceramics offer tunable electronic and optical properties. While not yet established in high-volume industrial production, materials in this chemical family are of interest for next-generation applications requiring controlled ionic conductivity, photoluminescence, or thermal isolation in specialized environments.

photonic devicessolid-state lighting researchthermal barrier applicationsrare-earth optoelectronicsexperimental ceramics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1743	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)2 entries	2.459	eV	DFT · OptB88vdW
↳	3.111	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	7.233	-	DFT · OptB88vdW
↳	5.993	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000830	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000506	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-253.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	324.3	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	3.390	%	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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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.518	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

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.

Tb3Si2S8I

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental