The invention discloses particle-free
silver ink, a preparation method of the particle-free
silver ink, a transparent silver conductive film and a preparation method of the transparent silver conductive film, and belongs to the field of transparent conductive films. The particle-free
silver ink comprises the following raw materials in percentage by
mass: 10 to 23% of a silver precursor, 12 to 32% of a complexing agent, 41.5 to 70% of a
solvent, and 0 to 10% of an additive; the preparation method of the particle-free silver ink comprises the following steps: uniformly mixing liquid raw materials; then adding
solid raw materials, stirring until being completely dissolved, and filtering. The transparent silver conductive film comprises 99.9wt % of Ag and the balance of impurities, and is of a grid structure, and the film thickness is 30nm to 2 <mu> m, the film
transmittance of the transparent silver conductive film is 17 to 83%, and the square resistance of the transparent silver conductive film is 1.1 to 11.3
omega / square; the preparation method of transparent silver conductive film comprises the following steps: printing or
coating the particle-free silver ink on a transparent substrate, rising temperature to 100 to 400 DEG C and carrying out heat preservation for 3 to 45min. The method has simple operation,
environmental protection, low curing temperature, low cost, easy storage and easy realization of industrialization, and further can be applied to a flexible substrate and can be realized by using multiple printing and
coating methods.