Characterization of Colloidal Amorphous Arrays Prepared by Uniaxial Pressure Application

We prepared a colloidal amorphous array by applying uniaxial pressure to a powder of monodispersed colloidal silica particles. Pellet-shaped samples were obtained that exhibit different structural colors depending on the diameter of the particles. We characterized the optical properties of the array...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 35(2019), 43 vom: 29. Okt., Seite 13983-13990
1. Verfasser: Naoi, Yui (VerfasserIn)
Weitere Verfasser: Seki, Takahiro, Ohnuki, Ryosuke, Yoshioka, Shinya, Takeoka, Yukikazu
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a We prepared a colloidal amorphous array by applying uniaxial pressure to a powder of monodispersed colloidal silica particles. Pellet-shaped samples were obtained that exhibit different structural colors depending on the diameter of the particles. We characterized the optical properties of the arrays by measuring the angle-dependent scattering spectrum wherein several spectral peaks were observed. The peak at the longest wavelength was caused by the short-range order of the particle arrangement. Interestingly, this peak exhibited a smaller shift in wavelength than that observed in similar samples prepared by several different methods. The other spectral peaks were thought to originate from Mie scattering, which produces a color when the diameter of the colloidal particles is appropriately chosen. Our results showed that uniaxial pressure application can be a suitable method to prepare structurally colored pigments with low angle dependence 
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700 1 |a Seki, Takahiro  |e verfasserin  |4 aut 
700 1 |a Ohnuki, Ryosuke  |e verfasserin  |4 aut 
700 1 |a Yoshioka, Shinya  |e verfasserin  |4 aut 
700 1 |a Takeoka, Yukikazu  |e verfasserin  |4 aut 
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