| abstract |
There is provided a composite oxide sintered body and an oxide transparent conductive film that can exhibit a lower light absorption characteristic over a wide wavelength range and obtain a low resistance oxide transparent conductive film. A composite oxide sintered body having indium, zirconium, hafnium and oxygen, wherein the atomic ratios of the elements constituting the sintered body are In, Zr, and Hf, respectively. Zr / (In + Zr + Hf) = 0.05 to 4.5 at% Provided is a composite oxide sintered body, characterized in that Hf / (In + Zr + Hf) = 0.0002 to 0.15 at%. |