Ordered Self-Assembling of Tetrahedral Oxide Nanocrystals
نویسندگان
چکیده
Self-assembling of size, shape, and phase controlled nanocrystals into superlattices with translational and even orientational ordering is a new approach for engineering nanocrystal materials and devices. High purity tetrahedral nanocrystals of CoO, with edge lengths of 4.4 6 0.2 nm, were synthesized and separated from Co nanocrystals, using a novel magnetic field phase-selection technique. Selfassembling of the faceted CoO nanocrystals forms ordered superlattices, the structures of which are determined. [S0031-9007(97)04151-3]
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