Method for Producing Magnesium-Containing Zinc Oxide, Magnesium-Containing Zinc Oxide, and Apparatus for Producing Same

Abstract

Provided is an apparatus for producing magnesium-containing zinc oxide, including: zinc vapor producing means 11 which produces zinc vapor by heating metallic zinc; magnesium vapor producing means 15 which produces magnesium vapor by heating metallic magnesium; mixed vapor producing means 20 which produces mixed vapor by mixing the zinc vapor and the magnesium vapor; and oxidizing gas contact means 19 which produces magnesium-containing zinc oxide by bringing an oxidizing gas into contact with the mixed vapor. The content of zinc in the mixed vapor is adjusted to be higher than that of magnesium.

1 . A magnesium containing zinc oxide produced by a method comprising producing zinc vapor by heating metallic zinc, producing magnesium vapor by heating metallic magnesium, producing mixed vapor by mixing the zinc vapor and the magnesium vapor, and producing magnesium containing zinc oxide by bringing an oxidizing gas into contact with the mixed vapor, wherein a content of zinc in the mixed vapor is higher than that of magnesium,
 wherein the magnesium containing zinc oxide is represented by Zn 1-x Mg x O (where 0<x≦0.25).   
     
     
         2 . The magnesium containing zinc oxide according to  claim 1 , wherein a molar ratio of magnesium in the mixed vapor is in a range of 0<mg/(Zn+Mg)≦0.25. 
     
     
         3 . The magnesium containing zinc oxide according to  claim 1 , wherein a molar ratio of magnesium in the mixed vapor is in a range of 0<Mg/(Zn+Mg)≦0.25. 
     
     
         4 . The magnesium containing zinc oxide according to  claim 1 , wherein the magnesium containing zinc oxide has a hexagonal Wurtzite crystal structure, and an oxygen defect is introduced therein. 
     
     
         5 . The magnesium containing zinc oxide according to  claim 1 , wherein a 90% particle diameter D90 of the magnesium containing zinc oxide is 1 μm or less.