Tl4 Si2 Se6

semiconductor

· Tl4 Si2 Se6

Tl₄Si₂Se₆ is a quaternary semiconductor compound combining thallium, silicon, and selenium in a layered crystal structure, belonging to the family of chalcogenide semiconductors. This is a research-phase material primarily investigated for its potential in optoelectronic and thermoelectric applications, where its narrow bandgap and layered structure could enable infrared detection, photovoltaic conversion, or solid-state cooling devices. The material represents an emerging class of complex semiconductors offering alternatives to conventional binary or ternary compounds by tuning electronic properties through multi-element composition.

infrared detectors (research)thermoelectric devices (experimental)photovoltaic absorber layersoptoelectronic sensorssolid-state electronics researchwide-gap bandgap engineering

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	2,976.5	ksi	—
Shear Modulus(G)	1,449.4	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.531	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.4700	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.

Tl4 Si2 Se6

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control