Tl2Cu2SnTe4

metal

· Tl2Cu2SnTe4

Tl₂Cu₂SnTe₄ is a quaternary chalcogenide compound belonging to the family of complex metal tellurides, combining thallium, copper, tin, and tellurium in a fixed stoichiometric ratio. This is primarily a research material rather than an established industrial product, investigated for its potential thermoelectric properties and narrow bandgap semiconductor characteristics. The compound is of interest in solid-state physics and materials chemistry for applications requiring conversion between thermal and electrical energy, though it remains in the experimental stage with limited commercial deployment.

thermoelectric devices (research)narrow-gap semiconductorsheat-to-electricity conversionlow-temperature physicsthin-film electronics (experimental)quantum materials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Thermal Conductivity(k)2 entries	0.3770	W/(m·K)	—
↳	0.3770	W/(m·K)	27°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
Density(ρ)	7.394	kg/m³	—

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Property	Value	Unit	Conditions
Band Gap(Eg)	0.1960	eV	—
Electrical Conductivity(σ)	0.00769	S/cm	27°C
Electrical Resistivity(ρe)	1.300	Ω·m	27°C
Magnetic Moment(μB)	0.000	µB	—
Thermoelectric Power Factor(PF)	9.156e-8	W/(m·K²)	27°C
Seebeck Coefficient(S)	345	μV/K	27°C
Thermoelectric Figure of Merit(zT)	0.0000729	-	27°C

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.02370	eV/atom	—
Formation Energy(ΔHf)	-0.1880	eV/atom	—

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

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.

Tl2Cu2SnTe4

Thermal Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control