Patent ID: 8822814

Claim:
A composition for electrode formation, comprising: a dispersion medium; metal nanoparticles dispersed in the dispersion medium; and one or more organic polymers selected from the group consisting of polyvinylpyrrolidone copolymers and cellulose ethers, wherein, a quantity of the metal nanoparticles within the composition is in a range from 2.5 to 95.0% by weight relative to 100% by weight of a dispersion composed of the metal nanoparticles and the dispersion medium, the metal nanoparticles have been chemically modified with a protective agent having an organic molecular main chain in which a carbon skeleton contains from 1 to 3 carbon atoms, a coating formed by applying the composition to a substrate using a wet coating method, the substrate includes at least one of; a silicon, a glass, a ceramic containing transparent conductive material, a polymer material or a metal, a laminate composed of two or more materials selected from a group consisting of glass, ceramic containing transparent conductive material, polymer materials and metals, the protective agent is configured to be at least one of eliminated and decomposed by heat applied for calcining the coating at a temperature of 130 to 400° C., whereby organic materials having an adverse effect on an electrical conductivity are removed from the coating, and the calcined coating formed by the composition has a thickness within a range of 0.1 to 2.0 μm, a resistivity of 2.1×10 −6 to 8.2×10 −6 [Ω·cm] and a reflectance value of 80 to 95% at 800 nm.