This video discussed about preparation of single crystal by Czochralski method. The Czochralski method , is a method of crystal growth used to obtain single crystals of semiconductors
(e.g. silicon and germanium ), metals (e.g. palladium, platinum, silver, gold), salts and synthetic gemstones.
It is also known as Pulling Technique. This method is widely used for growing semi conducting material crystal. The shape of the crystal is free from the constraint due to the shape of the crucible. In this method the charge is melted and maintained at a temperature slightly above the melting point. The pulling rod is lowered to just touch the melt. Since the rod is at lower
temperature of melt occurs at the point tip of the pulling rod. The crystal is pulled slowly.
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