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- Yoon, Tae-Sik
- Nano Semiconductor Research Lab.
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Reduced reflectivity and golden color of porous anodic aluminum oxide nanostructures filled with maghemite nanoparticles
- Author(s)
- Hu, Quanli, Choi, Young Jin, Kang, Chi Jung, Lee, Hyun Ho, Yoon, Tae-Sik
- Issued Date
- 2015-04
- Citation
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.24, pp.293 - 296
- Abstract
- The reflectivity and consequent color of anodic aluminum oxide (AAO) containing maghemite (gamma-Fe2O3) nanoparticles (NPs) were investigated. The hexagonally ordered pores of AAO were completely filled with maghemite NPs with similar to 20 nm in diameter by the dip-coating process. The AAOs containing maghemite NPs have a reduced reflectivity of light at the wavelength below similar to 600 nm, resulting in golden color. The reduced reflectivity and golden color of AAOs with NPs was explained by the absorption of light from blue to violet wavelength range by maghemite NPs. These results indicate the potential color-engineering of AAO by means of wavelength-selective absorption by incorporated NPs. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
- Publisher
- ELSEVIER SCIENCE INC
- ISSN
- 1226-086X
- Keyword (Author)
- Maghemite nanoparticle, Anodic aluminum oxide, Reflectivity, Color
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