Features of the formation of conductive films during thermal and laser sintering of silver nanoparticles stabilized by an ethoxylated carboxylic acid

Silver nanoparticles (Ag NPs) of ~ 6 nm in size were synthesized by the reduction silver 2-[2-(2-methoxyethoxy)ethoxy]acetate benzyl alcohol acting both as solvent and reducer. The as-synthesized Ag NPs dispersed a mixture nontoxic solvents with different boiling temperatures (butanol propylene glycol ethers) to prepare ink. ink was spin-coated on polyimide films processed thermal laser sintering. After sintering, have non-uniform structure contain many voids, causing their resistivity be quite high (28 µΩ×cm). Laser sintering inks film using fiber operating at wavelength 1.064 µm pulse-periodic mode results uniform structure, almost without lower 2.3 µΩ×cm. this case is promising method fabricate conductive patterns various substrates, including polymer flexible ones.