Ge5(Te4As)2

ceramic

· Ge5(Te4As)2

Ge₅(Te₄As)₂ is a chalcogenide ceramic compound combining germanium with tellurium and arsenic—elements commonly used in materials for infrared optical and electronic applications. This composition falls within the family of phase-change and amorphous chalcogenide materials, which are primarily investigated in research settings for infrared optics, nonlinear photonics, and solid-state memory devices where thermal and optical stability in the mid- to far-infrared spectrum are required. Engineers and researchers consider chalcogenide ceramics like this when conventional optical materials (silica, fluoride glasses) are inadequate for IR transmission, or when reversible structural changes under heat or light are desired for switching or recording applications.

infrared optics and lensesphase-change memory researchnonlinear optical devicesthermal imaging windowsexperimental photonic materialssolid-state switching elements

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—

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

Regulatory Screening

Environmental

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.

Ge5(Te4As)2

Electrical Properties

Regulatory Screening

Environmental