Tl4 Ge2 S6

semiconductor

· Tl4 Ge2 S6

Tl₄Ge₂S₆ is a thallium-germanium sulfide compound belonging to the chalcogenide semiconductor family, characterized by mixed-valence heavy-metal sulfide chemistry. This material is primarily of research interest for infrared optics and nonlinear optical applications, where its wide transparency window and strong optical nonlinearity make it a candidate for advanced photonic devices, though it remains largely experimental and less commercialized than competing chalcogenide systems.

infrared optics and windowsnonlinear optical devicesphotonic researchsemiconductor research compoundsoptical modulatorsemerging photonics materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	21.44	GPa	—
Shear Modulus(G)	9.867	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.484	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.4680	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 Ge2 S6

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control