Tl4 Te2 I12

semiconductor

· Tl4 Te2 I12

Tl₄Te₂I₁₂ is a mixed-halide semiconductor compound composed of thallium, tellurium, and iodine, belonging to the family of layered perovskite and perovskite-related semiconductors. This is a research-stage material under investigation for optoelectronic and photovoltaic applications, where the combination of heavy metal cations and halide anions creates tunable bandgaps and favorable light-absorption characteristics. The material is notable within the emerging lead-free and tin-free perovskite alternative space, addressing toxicity concerns in conventional halide perovskites while maintaining semiconducting functionality relevant to next-generation solar cells, photodetectors, and radiation detection devices.

photovoltaic researchperovskite solar cellsphotodetectorsradiation detectorsoptoelectronicslead-free semiconductors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.471	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.3920	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 Te2 I12

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control