The invention discloses a preparation method of a panchromatic structural color or color variation pattern array, belongs to the technical field of materials, and in particular relates to a method for preparing a panchromatic structural color or color variation pattern array by regulating the environment
dielectric constants of an upper interface and a lower interface of a
noble metal nanopore array. The preparation method comprises the following steps of: cleaning and surface
hydrophilization treatment, the preparation of
polystyrene single layer colloidal crystals, the construction for covering the
noble metal nanopore array by a
silicon oxide layer, the construction of a suspension
noble metal nanopore array, selective regulation and control of the environment
dielectric constant around the noble
metal nanopore array and the like. The obtained noble
metal nanopore array has a transmission peak adjustable within a visible
light wave band (350nm-800nm), so that different single-color patterns or color patterns are shown, the apparent color of a single color sample can be changed along with the change of the external environment
dielectric constant; and color change, disappear and
reproduction of the array patterns can be realized for the color pattern sample along with the change of the external environment dielectric constant.