Patent ID: 6379635
Filing Date: 2002-04-30
Classification: B82Y,C01B,C01G,C01P,H01L,Y02E

Abstract:
A process for preparing a nanocrystalline material comprising at least a first ion and at least a second ion different from the first ion, the process comprising:a single-step pyrolysis of a metal complex of the formula MLn in a dispersing medium suitable to form the nanocrystalline material, wherein: M represents a metal ion selected from the group consisting of a cadmium ion, a zinc ion, a lead ion, a mercury ion, an aluminum ion, an indium ion, a gallium ion and combinations thereof; L represents one or more ligands selected from the group consisting of a sulphide group, a phosphide group, a thiol-carbamate group, a dithiol-carbamate group, a seleno-carbamate group, a diseleno-carbamate group, an organic group, a thio group and combinations thereof; and n represents the valency of M; further wherein the dispersing medium is at a temperature to allow formation of the nanocrystalline material by pyrolysis when the contacted with the metal complex.