共 41 条
Colloidal Stripe Pattern with Controlled Periodicity by Convective Self-Assembly with Liquid-Level Manipulation
被引:27
作者:
Mino, Yasushi
[1
]
Watanabe, Satoshi
[1
]
Miyahara, Minoru T.
[1
]
机构:
[1] Kyoto Univ, Dept Chem Engn, Nishikyo Ku, Kyoto 6158510, Japan
基金:
日本学术振兴会;
关键词:
colloid;
convective self-assembly;
vertical deposition;
self-organization;
template-free technique;
stripe pattern;
SILICON NANOWIRE;
SOLAR-CELLS;
CRYSTALS;
ARRAYS;
FABRICATION;
LITHOGRAPHY;
SURFACES;
COATINGS;
BANDGAP;
NANOCRYSTALS;
D O I:
10.1021/am300526g
中图分类号:
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
We describe a template-free technique for arranging colloidal particles into a stripe pattern on a large scale. A simple liquid-level manipulation system was incorporated into the vertical-deposition convective self-assembly (CSA) technique. By periodically pumping a colloidal dispersion out of or into a reservoir to manipulate the liquid level, we successfully fabricated stripe patterns with various periodicities (i.e., line widths and spacings) that are unachievable with the normal CSA technique. We developed a simple model to predict the periodicity of the resultant colloidal stripes that enables the tailored fabrication of colloidal stripes with the desirable periodicity for a practical application. This technique has the advantages of versatility and scalability. By combining this technique with the two-step CSA technique (Mino et al., Langmuir 2011, 27(9), 5290-5295), we fabricated a large-sized colloidal grid network pattern of silver nanoparticles.
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页码:3184 / 3190
页数:7
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