In recent decades, chalcogenide glasses have been the subject of intense interest because of their unique physical properties such as high infrared transparency, strong light sensitivity, and high refractive index. The glasses are used for optical fibers, lenses, sensors and phase change storage systems, as well as for data storage media (RW-CD / DVD / Blu-Ray). The applications are based on reversible amorphous crystalline phase changes. Phase transitions like this exhibited by Se1-xTex alloys were investigated using ultrafast differential scanning calorimetry (Flash DSC).
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