As1 Se3 Tl3

semiconductor

· As1 Se3 Tl3

As₁Se₃Tl₃ is a ternary chalcogenide semiconductor compound combining arsenic, selenium, and thallium—a research-phase material rather than an established commercial product. This material family is of interest in infrared optics and photonic applications where chalcogenide glasses and crystals are valued for their transparency in the mid- to long-wave infrared spectrum and tunable bandgap properties. The thallium-containing composition positions it as an experimental candidate for specialized optoelectronic devices, though practical engineering adoption remains limited due to thallium's toxicity, material stability challenges, and the availability of more established alternatives (such as single-component or binary chalcogenides) for most infrared applications.

infrared optics (research)photonic devices (experimental)semiconductor thin filmschalcogenide materials researchbandgap engineering

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	22.31	GPa	—
Shear Modulus(G)	6.787	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.3151	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.3260	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.

As1 Se3 Tl3

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control