Ge1 Te7 As4

semiconductor
· Ge1 Te7 As4

Ge₁Te₇As₄ is a chalcogenide glass—a vitreous semiconductor compound combining germanium, tellurium, and arsenic—belonging to the amorphous materials family used in infrared optics and phase-change devices. This composition sits within the established Ge-Te-As ternary system widely studied for infrared window applications, optical data storage, and non-volatile memory technologies, where its combination of optical transmission in the mid-to-long infrared range and potential reversible crystallization behavior offers advantages over single-element or binary alternatives. Research interest in this specific stoichiometry centers on tuning thermal stability and switching properties for next-generation phase-change memory and integrated photonics applications.

infrared optics and lensesphase-change memory devicesoptical data storage mediathermal sensorsintegrated photonics waveguidesresearch/developmental applications

Compliance & Regulations

?ITAR?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Band Gap(Eg)
—
eV——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
—
eV/atom——
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

Quality & Standards

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.