| 摘要 |
PROBLEM TO BE SOLVED: To provide silver fine particles excellent in low-temperature sintering, a method for producing the same, and a conductive paste, a conductive film, and an electronic device containing the silver fine particles.SOLUTION: In the method for producing the silver fine particles: an alcohol solution (solution A) of an amine complex of silver nitrate is prepared using silver nitrate and at least one 2-4C aliphatic amine which is hydrosoluble or water soluble; apart from the solution A, an aqueous solution (solution B) is prepared by dissolving ascorbic acid or erythorbic acid and a halide; the mixture obtained by mixing the solution A with the solution B is added to a container which contains water and stirred; and then silver fine particles obtained are washed and dried, wherein a slurry of the silver fine particles obtained has an aggregation system by the addition of at least 1.6×10mol of the halide per mole of the silver nitrate in the solution B, so that subsequent washing becomes easy. Thus, the silver fine particles excellent in low-temperature sintering whose carbon content is 0.25 wt.% or less are obtained. |
