An iridescent film of porous anodic aluminum oxide with alternatingly electrodeposited Cu and SiO2 nanoparticles

The structurally colored surface of anodic aluminum oxide (AAO) is highly useful for decoration and anti-counterfeiting applications, which are of significance for both scientific and industrial communities. This study presents the first demonstration of the fabrication of an iridescent film of poro...

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Bibliographic Details
Published in:Beilstein journal of nanotechnology 2019, Vol.10 (1), p.735-745
Main Authors: Chang Menglei, Hu Huawen, Quan Haiyan, Wei Hongyang, Xiong Zhangyi, Lu Jiacong, Luo Pin, Liang Yaoheng, Ou Jianzhen, Chen, Dongchu
Format: Article
Language:English
Subjects:
Aluminum alloys
Aluminum base alloys
Aluminum oxide
anodic aluminum oxidation
Carbon fibers
Color
Corrosion effects
Corrosion prevention
Electric fields
Electrodeposition
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interference-enabled color production
Light
Nanoparticles
Nanoscience
Nanotechnology
Optical properties
Oxidation
Particle size
rainbow effect
Rainbows
Silicon dioxide
structural color
Substrates
Textile fibers
Thin films
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Summary:The structurally colored surface of anodic aluminum oxide (AAO) is highly useful for decoration and anti-counterfeiting applications, which are of significance for both scientific and industrial communities. This study presents the first demonstration of the fabrication of an iridescent film of porous AAO on an industrial aluminum alloy substrate, with alternatingly electrodeposited Cu and SiO2 nanoparticles (NPs). A rainbow effect was effectively obtained for the optimized sample with appropriate alternating electrodeposition times. The structure and optical properties of a series of the electrodeposited AAO-based thin film were investigated. The Cu and SiO2 NPs were found to be uniformly deposited into the porous structure of the AAO film, and the alternating electrodeposition repeating twice led to the formation of the optimal AAO-based thin film that exhibited a rainbow effect and superior anti-corrosion performance.
ISSN:2190-4286
2190-4286
DOI:10.3762/bjnano.10.73