Tl5Se2Br

ceramic

· JVASP-12966· Tl5Se2Br

Tl5Se2Br is a thallium-based chalcohalide ceramic compound combining thallium, selenium, and bromine elements. This material is primarily of research interest for optoelectronic and infrared applications, particularly in spectroscopy and nonlinear optical systems where its mixed-anion composition can enable tunable bandgaps and optical transmission windows. While not widely deployed in commodity applications, thallium chalcohalides represent an emerging class of materials for advanced photonic devices where their chemical flexibility offers potential advantages over traditional single-anion ceramics.

infrared optics and spectroscopynonlinear optical devicesradiation detectionresearch-phase photonicswide-bandgap semiconductors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3031	lb/in³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.3830	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	12.81	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.2000	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.3167	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000798	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00135	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-116.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	145.7	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.5257	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.

Tl5Se2Br — Properties & Data | MatWorld

Tl5Se2Br

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental