Abstract: A conductive ink composition includes metallic nanoparticles, a first non-aqueous polar protic solvent, and a second non-aqueous polar protic solvent. The metallic nanoparticles can be silver nanoparticles. The silver nanoparticles can have an average particle size in a range of 20 nm to 80 nm. Polyvinylpyrrolidone is present on the metallic nanoparticle surfaces. The first solvent has a boiling point of at least 110° C. and a viscosity of at least 10 cP at 25° C. The second solvent has a boiling point of at least 200° C. and a viscosity of at least 100 cP at 25° C. The conductive ink composition contains the metallic nanoparticles in a range of 10 wt %to 75 wt %. The concentration of the second solvent in the conductive ink composition is 11.0% by volume or greater.