NOVELTY - Solar cell module comprises either: many solar cells, a connector operable to electrically connect adjacent solar cells to each other, a light-transmitting member (5) disposed to cover a light receiving surface of the module and containing alkali element, a first antireflection film (4a) formed on the member and comprising silica, siloxane and voids (8) of silica, and a second antireflection film (4b) formed on surface of first antireflection film; or a solar cell, a light receiving surface, the light-transmitting member, the first antireflection film, and the second antireflection.    USE - Used as solar cell module.    ADVANTAGE - The solar cell module ensures that rays of light in a satisfactory amount enter the solar cells, and suppresses the deterioration of the antireflection film in reflectance, permeation of gas through the antireflection film and lowering of the light transmission, hence it is reliable, and exhibits excellent durability and desired optical properties, as compared to conventional solar modules.    DETAILED DESCRIPTION - Solar cell module comprises either: many solar cells, a connector operable to electrically connect adjacent solar cells to each other, a light-transmitting member (5) disposed to cover a light receiving surface of the solar cell module and containing an alkali element, a first antireflection film (4a) formed on the light-transmitting member and comprising silica, a siloxane and voids (8) of the silica, and a second antireflection film (4b) formed on the surface of the first antireflection film and comprising the silica and the siloxane, where the silica has a particle diameter of 5-50 nm; or a solar cell, a light receiving surface disposed to receive incident light rays, the light-transmitting member, the first antireflection film, and the second antireflection. An INDEPENDENT CLAIM is also included for producing the solar cell module, comprising: forming the light-transmitting member on the light receiving surfaces of solar cells; subjecting a mixture of polysiloxane, silica particles and an organic solvent to drying and firing to form an antireflection film precursor on the light-transmitting member; subjecting the antireflection film precursor to thermal drying to form the first antireflection film; and subjecting a surface of the first antireflection film to rapid heat treatment, so that the silica particles are fused to form the second antireflection film containing the silica and the siloxane.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of the structure of the antireflection film.    First antireflection film (4a)    Second antireflection film (4b)    Light-transmitting member (5)    Voids (8)