Germanium antimony telluride (Ge2Sb2Te5) MSDS introduction

What is germanium antimony telluride

GeSbTe (germanium-antimony-tellurium or GST) is a phase-change material from the group of chalcogenide glasses used in rewritable optical discs and phase-change memory applications. Its recrystallization time is 20 nanoseconds, allowing bitrates of up to 35 Mbit/s to be written and direct overwrite capability up to 106 cycles. It is suitable for land-groove recording formats. It is often used in rewritable DVDs. New phase-change memories are possible using n-doped GeSbTe semiconductor. The melting point of the alloy is about 600°C (900 K) and the crystallization temperature is between 100 and 150°C.

Material Safety Data Sheet.pdf