Details

Autor(en) / Beteiligte

• Manzano, Cristina V
• Schwiedrzik, Jakob J
• Bürki, Gerhard
• Pethö, Laszlo
• Michler, Johann
• Philippe, Laetitia

Titel

A set of empirical equations describing the observed colours of metal–anodic aluminium oxide–Al nanostructures

Ist Teil von

• Beilstein journal of nanotechnology, 2020-05, Vol.11 (1), p.798-806

Ort / Verlag

Trakehner Str. 7-9, 60487 Frankfurt am Main, Germany: Beilstein-Institut

Erscheinungsjahr

2020

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Structural colours have received a lot of attention regarding the reproduction of the vivid colours found in nature. In this study, metal–anodic aluminium oxide (AAO)–Al nanostructures were deposited using a two-step anodization and sputtering process to produce self-ordered anodic aluminium oxide films and a metal layer (8 nm Cr and 25, 17.5 and 10 nm of Au), respectively. AAO films of different thickness were anodized and the Yxy values ( Y is the luminance value, and x and y are the chromaticity values) were obtained via reflectance measurements. An empirical model based on the thickness and porosity of the nanostructures was determined, which describes a gamut of colours. The proposed mathematical model can be applied in different fields, such as wavelength absorbers, RGB (red, green, blue) display devices, as well as chemical or optical sensors.