Patent ID: 6787122
Filing Date: 2004-09-07
Classification: B82Y,C30B,H01J,Y10S

Abstract:
A method of manufacturing a material comprising:(a) producing raw nanostructure or nanotube-containing material comprising closed structures; (b) purifying the raw material; (c) processing the purified material thereby forming openings in the closed structures; (d) introducing a foreign species comprising electron donors or electron acceptors into at least some of the openings; (e) varying at least one of electronic work function, electronic density of state at the Fermi Level, and electrical conductivity of the material by controlling the amount of foreign species introduced at step (d); and (f) closing the openings by forming passivation layers, the passivation layers being formed by exposing the nanostructure or nanotube-containing material containing the foreign species to oxygen or an oxygen-containing gas, thereby forming capsules filled with the foreign species.