摘要 |
An oxide mesostructured film has a structure in which the orientation direction of cylindrical structures is a given direction throughout in the film plane, at least one peak appears in an angle region corresponding to a plane spacing of 8 nm or more, the number of atoms (X) of silicon to which an alkyl group having 8 or more carbon atoms is bonded to the number of atoms (Y) of silicon or metallic elements among elements constituting oxides of the oxide mesostructured film is 0.1 or more and 0.5 or lower in terms of the atomic number ratio (X/Y).
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