Near-infrared absorptive composition, near-infrared absorptive film, and image sensor for solid-state image sensor

摘要

An object of the present invention is to provide an image sensor for a solid-state imaging device comprising a near-infrared absorptive composition excellent in dispersion stability, visible light transmittance and near-infrared light absorptivity, a near-infrared absorptive film capable of reducing the film thickness, and the near-infrared absorptive film will do The near-infrared absorptive composition of this invention contains a near-infrared absorber and a solvent, The said near-infrared absorber is a phosphonic acid compound which has a structure represented by the following general formula (I) as (A) component, and 2 or more types of phosphoric acid esters different in structure. A component comprising a compound or a sulfonic acid ester compound and a copper ion, or as component (B), a phosphonic acid compound and a copper complex obtained by reacting two or more types of phosphoric acid ester compounds or sulfonic acid ester compounds having different structures with a copper compound It is characterized in that it contains at least any component.