2013 Fiscal Year Final Research Report
Creation of optical functional materials using gold nanorods aligned every a nanometer by an electric field
| Project/Area Number |
23710127
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nanomaterials/Nanobioscience
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| Research Institution | Aichi University of Education |
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Principal Investigator |
HINO Kazuyuki 愛知教育大学, 教育学部, 准教授 (60362307)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 金ナノロッド / 液晶分子 / 外部電場 / 光学機能材料 |
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| Research Abstract |
We have substituted thiol-terminated LC molecules for the surfactant used to stabilize gold nanorods in order to add LC character to the nanorods. TEM observation of the nanorods indicates inter-rod interactions are seen on the arrangement of the nanorods. SAXS experiments were carried out for the nanorods in a solution to investigate orientational interaction between them without the influence of TEM grid surface. Distance distribution functions obtained from SAXS profiles show end-to-end interactions are more predominant than side-by-side as the aspect ratio of a nanorod increases. Cyanobiphenyl groups in the LC molecules preferably substituted at both ends of nanorods can interact electrostatically to arrange them.
On the basis of inter-rod interactions, we have applied an electric field to LC-capped nanorods in order to align them along the field. We have observed that SAXS intensities decrease with increasing AR, when an electric field is applied to nanorods in a solution cell.
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