Ge2 Te5 As2

semiconductor

· Ge2 Te5 As2

Ge2Te5As2 is a chalcogenide glass—a amorphous semiconductor composed of germanium, tellurium, and arsenic—belonging to the family of materials used for infrared optics and phase-change applications. This composition sits in an active research space for infrared window materials, optical recording media, and potential thermal imaging components, where its infrared transparency and variable refractive index offer advantages over conventional glasses and crystalline alternatives in the mid-to-far IR spectrum. The arsenic addition modulates glass-forming tendencies and thermal stability compared to simpler Ge-Te binaries, making it relevant for specialized optoelectronic and photonic device engineering.

infrared optics and windowsphase-change memory devicesoptical data storagethermal imaging componentsfiber optics (mid-IR)research semiconductors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.01460	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.04400	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.

Ge2 Te5 As2

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control