| abstract |
Disclosed is a metal oxide fine particle dispersion having a high refractive index and reduced photocatalytic activity despite a large half-value width of X-ray diffraction. The metal oxide fine particle dispersion has an X-ray diffraction peak half width of 3 ° or more and a refractive index of 2.0 or more. An aspect in which the metal constituting the metal oxide fine particles contains any of titanium, zirconium, hafnium, barium and tin, the metal oxide fine particles are titanium oxide, zirconium oxide, a composite oxide of titanium and zirconium, and The aspect which is either the complex oxide of titanium and tin, etc. are mentioned. [Selection figure] None |