Fabrication of Mono- and Multi-Layers of Submicron-Sized Spheres by a Dip-Coating Technique and Their Transmittance Property
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- Kobayashi Yoshio
- Department of Chemical Engineering, Graduate School of Engineering, Tohoku University
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- Miyauchi Hiroyuki
- Department of Chemical Engineering, Graduate School of Engineering, Tohoku University
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- Gu Shunchao
- Department of Chemical Engineering, Graduate School of Engineering, Tohoku University
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- Nagao Daisuke
- Department of Chemical Engineering, Graduate School of Engineering, Tohoku University
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- Konno Mikio
- Department of Chemical Engineering, Graduate School of Engineering, Tohoku University
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Abstract
This paper describes fabrication of well-ordered mono- and multi-layers of submicron-sized silica or polystyrene (PSt) spheres. The mono-layers of spheres were fabricated on glass plates by a dip-coating technique at various concentrations of KCl, HCl and KOH in colloidal suspension. The mono-layer of spheres in a close-packed hexagonal structure showed an extinction peak in the visible wavelength attributed to a secondary Bragg diffraction. Full width at half maximum (FWHM) of the extinction peak was the lowest at low ionic strength and at neutral pH. Different types of multi-layers of spheres were fabricated by repeating the dip-coating processes. Silica spheres with a size of 589 nm could be mono-layered in the close-packed hexagonal structure on the mono-layer of the 404-nm-PSt spheres. PSt spheres with a size of 404 nm could be layered on the mono-layer of 500-nm-PSt spheres in such a way that the 404-nm-PSt spheres occupied void spaces among three 500-nm-PSt spheres. Silica spheres with a size of 233 nm could be assembled in a two-dimensional network structure on mono-layered 589-nm-silica spheres.
Journal
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 37 (5), 614-621, 2004
The Society of Chemical Engineers, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282679544718080
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- NII Article ID
- 10013340426
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- NII Book ID
- AA00709658
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- COI
- 1:CAS:528:DC%2BD2cXks12htbs%3D
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- ISSN
- 18811299
- 00219592
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- NDL BIB ID
- 6944369
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed