
A nanocrystal is a material particle having at least one dimension smaller than 100 nanometres (a nanoparticle) and composed of atoms in either a single- or poly-crystalline arrangement. The size of nanocrystals distinguishes them from larger crystals. For example, silicon nanocrystals can provide efficient light emission while bulk silicon does n...
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http://en.wikipedia.org/wiki/Nanocrystal

Molecular-sized solids formed with a repeating, 3D pattern of atoms or molecules with an equal distance between each part. Nanocrystals are aggregates of anywhere from a few hundred to tens of thousands of atoms that combine into a crystalline form of matter known as a 'cluster'. Typically around 10nm in diameter, nanocrystals are larger than molec...
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http://www.encyclo.co.uk/local/20741

Type: Term Pronunciation: nan-ō-kris′tăl Synonyms: quantum dot
Found on
http://www.medilexicon.com/medicaldictionary.php?t=58763
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