NOVELTY - A photoelectric conversion device comprises a semiconductor electrode and metal film as an opposite electrode formed on a metal oxide film. An intermediate film comprising polythiophene compound or its derivative and polystyrenesulfonic acid is formed on the metal oxide film. The metal film is formed on the intermediate film.    USE - As a photoelectric conversion device (claimed).    ADVANTAGE - The method provides improved adhesion property of a metal (such as platinum) film; and prevents pollution of the metal film as an opposite electrode with a different type metal.    DETAILED DESCRIPTION - A photoelectric conversion device comprises a semiconductor electrode and metal film as an opposite electrode formed on a metal oxide film. An intermediate film comprising polythiophene of formula (I) or its derivative and polystyrenesulfonic acid of formula (II), RSO3H, R'OSO3H, HCl, HClO4, HPF6, HBF4, or HI5 is formed on the metal oxide film. The metal film is formed on the intermediate film.    R = alkyl or aryl;    R' = H, alkyl or aryl;    R1, R2 = H, alkyl, alkoxy, aryl or aryloxy;    R1+R2 = optionally cyclic circle.    INDEPENDENT CLAIMS are included for the following:    (1) a method of fabricating of a photoelectric conversion device comprising a semiconductor electrode and metal film as an opposite electrode formed on a metal oxide film, involving forming an intermediate film comprising (I), and (II), RSO3H, R'OSO3H, HCl, HClO4, HPF6, HBF4 or HI5, on the metal oxide film, and forming the metal film on the intermediate film;    (2) preparation of an electronic apparatus comprising a metal film formed on a metal oxide film, involving forming the intermediate film on the metal oxide;    (3) an electronic apparatus comprising a metal film formed on a metal oxide film, where the intermediate film is formed on the metal oxide film;    (4) a metal film formation method for forming a metal film on a metal oxide film, involving forming the intermediate film on the metal oxide film and forming the metal film on the intermediate film; and    (5) a layer structure comprising a metal film formed on a metal oxide film, where the intermediate film is formed on the metal oxide film.