Chalcogenide glass
From Wikipedia, the free encyclopedia
A Chalcogenide glass (hard "ch" as in "chemistry") is a glass containing a chalcogenide element (sulphur, selenium or tellurium) as a substantial constituent.
[edit] Applications
- Mouldable infrared optics including lenses, and infrared optical fibers as these materials transmit well in the infrared
- Phase change materials, such as GeSbTe and AgInSbTe, for optical discs and phase change memory. In the optical discs, the phase change layer is usually sandwiched between dielectric layers of ZnS-SiO2, sometimes with a layer of a crystallization promoting film. [1] Other less common such materials are InSe, SbSe, SbTe, InSbSe, InSbTe, GeSbSe, GeSbTeSe, and AgInSbSeTe. [2]
[edit] External links
- Ovonyx phase change memory
