An Easy Method for Fabricating TiO_2 Gel Photonic Crystals Using Molds and Highly Concentrated Alkoxide Solutions : Instrumentation, Measurement, and Fabrication Technology
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概要
- 論文の詳細を見る
Two types of two-dimensional (2D) photonic crystals (PCs) made of transparent TiO_2 xerogels and having triangular arrays of air columns and TiO_2 rods with a lattice constant of 15 μm were successfully fabricated from a highly concentrated Ti-alkoxide (Ti(OPr^i)_4) solution (1.6 mol/L) using Si micromolds. The gel PCs had dimensions of 10 μm thickness and of more than 300 μm width and length. The diameters of the air columns and TiO_2 rods formed in the PCs were 5 μm and 11 μm, respectively. It was found that the addition of polyethylene glycol is quite effective in producing crack-free gel PCs by this method. This method allows preparation of dense and highly transparent TiO_2 gel PCs and also allows the introduction of arbitrary defects at desired positions in PCs. This method can be applied for various kinds of metal alkoxides.
- 社団法人応用物理学会の論文
- 2002-03-01
著者
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Kuwabara Makoto
Department Of Materials Engineering University Of Tokyo
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Kuwabara Makoto
Department Of Materials Engineering The University Of Tokyo
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SHIMODA Shu
Department of Materials Engineering, University of Tokyo
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Shimoda Shu
Department Of Materials Engineering University Of Tokyo
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Kuwabara Makoto
Department Of Applied Chemistry Faculty Of Engineering Kyushu Institute Of Technology
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Shimada Shu
Department of Materials Engineering, University of Tokyo
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