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

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

Beilstein J. Nanotechnol. 2020, 11, 798–806. https://doi.org/10.3762/bjnano.11.64

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

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

Beilstein J. Nanotechnol. 2020, 11, 798–806. https://doi.org/10.3762/bjnano.11.64

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Manzano, C. V.; Schwiedrzik, J. J.; Bürki, G.; Pethö, L.; Michler, J.; Philippe, L. Beilstein J. Nanotechnol. 2020, 11, 798–806. doi:10.3762/bjnano.11.64

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TY  - JOUR
A1  - Manzano, Cristina V.
A1  - Schwiedrzik, Jakob J.
A1  - Bürki, Gerhard
A1  - Pethö, Laszlo
A1  - Michler, Johann
A1  - Philippe, Laetitia
T1  - A set of empirical equations describing the observed colours of metal–anodic aluminium oxide–Al nanostructures
JF  - Beilstein Journal of Nanotechnology
PY  - 2020///
VL  - 11
SP  - 798
EP  - 806
SN  - 2190-4286
DO  - 10.3762/bjnano.11.64
PB  - Beilstein-Institut
JA  - Beilstein J. Nanotechnol.
UR  - https://doi.org/10.3762/bjnano.11.64
KW  - anodic aluminium oxide (AAO) films
KW  - anodization
KW  - structural colours
KW  - reflectance
KW  - polar coordinates
KW  - plasmonic effects
N2  - 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.
ER  -

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