UNIVERSAL METHOD FOR SYNTHESIS OF METALLIC NANOPARTICLES VIA SCANNING PROBE LITHOGRAPHY

Abstract: a method for forming metal or metal oxide nanoparticles on a substrate can include depositing a precursor ink on a hydrophobic surface of a substrate to form nanoreactors on the hydrophobic surface. the precursor ink includes a metal precursor and a non-coordinating polymer dissolved in a solvent. the process can then include evaporating the solvent from the nanoreactors, wherein upon evaporation of the solvent, the polymer and the metal precursor phase separate and the metal precursor aggregates on a surface of the nanoreactors. after the solvent is evaporated, the polymer is removed to thereby leave the aggregated metal precursor in contact with the hydrophobic surface. the resulting aggregated metal precursor is then annealed to form the metal or metal oxide nanoparticle.

Inventor(s): Chad A. Mirkin, Vinayak P. Dravid, Carolin B. Wahl

CPC Classification: B22F1/054 (WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER (making alloys by powder metallurgy ); APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER)

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