Array of niobium nanotips formed in porous anodic alumina matrix

Abstract

New fabrication method of nanoscale regular tips for vacuum microelectronics basing on electrochemical anodizing double- layer systems aluminum-niobium in aqueous acid electrolyte has been developed. This method allows providing very small overall emitted size and high uniform packaging densities without lithography and etching technique. Electron field emission from array of niobium nanotips formed in porous anodic alumina matrix has been investigated.