abstract |
The method for producing an amorphous composite metal oxide of the present invention comprises the steps of: forming a group consisting of In, Ga, Al, Si, Ge, Sn, Ti, Zr, Ta, Nb, Hf, W, and Zn The step of obtaining a composite metal solution by dissolving at least two kinds of metals or a compound thereof in a solvent, and subjecting the composite metal solution to heat treatment to obtain an amorphous composite metal oxide. |