U4 Te4 S4

semiconductor

· U4 Te4 S4

U4Te4S4 is an experimental mixed-anion semiconductor compound combining uranium, tellurium, and sulfur. This material belongs to the family of polyanionic semiconductors and is primarily of research interest for studying electronic and optical properties in systems with competing chalcogenide bonding. While not yet commercialized, uranium chalcogenides are investigated for potential applications in advanced optoelectronics, nuclear materials science, and next-generation semiconductor devices where tunable bandgaps and mixed-valence chemistry offer advantages over conventional materials.

research semiconductorsnuclear materials sciencephotoelectric deviceschalcogenide compoundsoptoelectronics developmentmaterials characterization

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	12,009.1	ksi	—
Shear Modulus(G)	6,080	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000800	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.054	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.

U4 Te4 S4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control