Preparation of Crystalline Silicon

Preparation of Crystalline Silicon. Pure crystalline silicon is prepared in a quartz ampoule (Fig. 110). Put 2.5 g of amorphous silicon and 0.5 g of iodine preliminarily purified by sublimation 

Place the sealed ampoule into a two-zone furnace in which a temperature gradient of 1150-950 °C is maintained and leave it there for 

Open the ampoule and purify the formed crystalline silicon from iodine by subliming the latter in vacuum. Explain the occurring processes. 

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Jasinski J M and LeGoues F K 1991 Photochemical preparation of crystalline silicon nanoclusters Chem. Mater. 3 989... 

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