Tl4 P4 Pb4 S16

semiconductor

· Tl4 P4 Pb4 S16

Tl₄P₄Pb₄S₁₆ is a mixed-metal chalcogenide compound containing thallium, lead, phosphorus, and sulfur—a complex quaternary semiconductor belonging to the family of heavy-metal pnictide-chalcogenides. This is a research-phase material primarily explored in condensed-matter physics and materials science for its potential electronic and optoelectronic properties; it is not widely used in established commercial applications. Interest in this compound centers on its layered or framework crystal structure and how multivalent heavy metals (Tl⁺/Tl³⁺ and Pb²⁺) interact with anionic phosphorus-sulfur networks, potentially offering tunable band gaps or unusual transport phenomena relevant to emerging semiconductor technologies.

experimental semiconductorsquantum materials researchsolid-state physicsoptoelectronic device developmentthermoelectric materials explorationhigh-pressure/extreme-condition studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.995	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.5030	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 P4 Pb4 S16

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control