2012 Fiscal Year Final Research Report
Shape control of colloidal crystals by microfluidics and their applications to optical functional materials
| Project/Area Number |
22686063
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Structural/Functional materials
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| Research Institution | Yokohama National University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2012
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| Keywords | 光機能材料 / コロイド結晶 / フォトニック結晶 / 高分子ゲル / マイクロ流体 |
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| Research Abstract |
Colloidal crystals, three-dimensional periodic arrays of monodisperse particles, have received considerable attention with respect to the possible application, particularly as photonic crystals. The colloidal crystals are conventionally fabricated on the substrate, and the film shape limits the utility of these crystals for many applications. In this work, we have succeeded in fabricating colloidal crystals in various shapes such as shells, fibers, and large films by microfluidic techniques. We demonstrated that the gel-immobilized colloidal crystal shells are potentially useful for microcapsules that can monitor changes inside and outside the capsules through the Bragg diffraction wavelength or diffraction color.
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