NANOSTRUCTURES FOR STRUCTURAL COLOURING

摘要

The invention relates to a nanostructured product with a structurally coloured surface. The nanostructured product includes a substrate with a nanostructured surface having nano-sized pillars or holes arranged in a periodic pattern and extending into or out from the substrate. The bottoms of the nano-sized holes or the tops of nano-sized pillars are provided with metal layers electrically isolated and distanced from a base surface of the nanostructured surface. A transparent or translucent protective layer covers the substrate and the metal layers.

主权项

1. A nanostructured product with a structurally coloured surface, comprising:
a substrate comprising a nanostructured surface, wherein the nanostructured surface comprises a base plane and nano-sized structural features arranged in a periodic pattern and extending into or out from the base plane, metal islands provided on the nano-sized structural features so that each metal island is distanced from the base plane corresponding to a longitudinal dimension of the structural features, a metal layer covering the base plane, and a transparent or translucent protective layer covering the substrate and the metal islands, wherein the longitudinal dimension of the structural features is within a range from 30 to 80 nanometres, and wherein the metal islands and the metal layer are made from aluminium.