Copper nanocrystals and methods of producing same

Abstract

The invention relates to methods of making monodisperse nanocrystals comprising the steps of reducing a copper salt with a reducing agent, providing a passivating agent comprising a nitrogen and/or an oxygen donating moitey and isolating the copper nanocrystals. Moreover, the invention relates to methods for making a copper film comprising the steps of applying a solvent comprising copper nanocrystals onto a substrate and heating the substrate to form a film of continuous bulk copper from said nanocrystals. Finally, the invention also relates to methods for filling a feature on a substrate with copper comprising the steps of applying a solvent comprising copper nanocrystals onto the featured substrate and heating the substrate to fill the feature by forming continuous bulk copper in the feature.

Dependencies are inferred from the claim text.