Top-down Preparation of Dispersions of C60 Nanoparticles in Organic Solvents

Abstract Nanoparticles of C60, prepared by hand-grinding bulk solids in an agate mortar, were found to disperse stably in various organic solvents, in which molecular solubility of C60 is negligibly small. The resulting dispersions contained the C60 nanoparticles, whose average size varies between 200 and 300 nm depending on the solvent. The C60 concentrations in the dispersions were an order of magnitude higher than those prepared by the conventional methods.

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