Patent ID: 7799291
Filing Date: 2010-09-21
Classification: B01J,B82Y,C01G,C01P,C23C,Y10S

Abstract:
1. An apparatus for fabricating ZnO nanostructures, comprising: a heating element having an interior cavity and capable of heating the interior cavity to a temperature in the range of from 800-950° C.; a horizontal reaction tube having an inlet and an outlet, the reaction tube being positioned inside the interior cavity of the heating element with the inlet disposed to introduce a carrier gas into the reaction tube; a source of a carrier gas in flow communication with the inlet; a container within the reaction tube, the container disposed to receive and contain source materials; and an array of solid substrates disposed on the container above the source materials, adjacent substrates in the array are disposed with a space in between to allow the carrier gas to impinge on the source materials in the container wherein the source materials comprise ZnO and graphite, and the carrier gas comprises argon and oxygen, and a volume ratio of oxygen and argon in the carrier gas ranges from 1% to 20%.