The influence of the crystalline structure of nanocrystals called nanocrystallinity on their chemical and physical properties is presented.<br/> The nanocrystals with low size distribution self assemble in 3D superlattices called supracrystals. Heterogeneous and homogeneous growth processes of supracrystals take place inducing marked changes in their physical properties. Note that a hierarchy in supracrystal growth processes, nanocrystalinity segregation, growth of quasi supracrystals and supracrystals characterized by vicinal surfaces are pointed out.<br/>Supracrystal intrinsic properties of either one or two components are demonstrated.<br/>Analogy between atoms ordered in a nanocrystal and nanocrystals ordered in a supracrystal is presented.<br/>Solubilization of hydrophobic supracrystal in aqueous solution is obtained with Co and Au supracrystals with appearance of tunable plasmonic metamaterials.

Nano-supra crystal: A new challenge

251st National Meeting (2016)

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