
Nanocrystalline Silicon
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High Quality Content by WIKIPEDIA articles! Nanocrystalline silicon (nc-Si), sometimes also known as microcrystalline silicon (?c-Si), is a form of porous silicon. It is an allotropic form of silicon with paracrystalline structure?is similar to amorphous silicon (a-Si), in that it has an amorphous phase. Where they differ, however, is that nc-Si has small grains of crystalline silicon within the amorphous phase. This is in contrast to polycrystalline silicon (poly-Si) which consists solely of crystalline silicon grains, separated by grain boundaries.