S4 Fe2 Tl2

semiconductor

· S4 Fe2 Tl2

S4Fe2Tl2 is an experimental ternary semiconductor compound combining sulfur, iron, and thallium. This material belongs to the family of chalcogenide semiconductors with mixed-metal dopants, primarily of interest in solid-state physics research rather than established industrial production. The iron-thallium combination creates unusual electronic properties that may be relevant to optoelectronic or thermoelectric applications, though practical engineering use cases remain limited to laboratory-scale investigation and fundamental materials characterization.

thermoelectric researchsolid-state physicsexperimental semiconductorsoptoelectronic devices (exploratory)materials characterization

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	37.29	GPa	—
Shear Modulus(G)	16.79	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00940	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.

S4 Fe2 Tl2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control