2011 Fiscal Year Final Research Report
Synthesis and Electric Properties of Ferroelectric Surface Supramolecular Assemblies with Uniaxial anisotropy
| Project/Area Number |
21350082
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Functional materials chemistry
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| Research Institution | Chuo University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KANAIZUKA Katsuhiko 中央大学, 理工学部, 助教 (50457438)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 表面錯体 / 分子配向 / 積層膜 / ルテニウム錯体 / 混合原子価 |
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| Research Abstract |
We have studied the fabrication of redox-active multilayer films on solid surfaces toward molecular-based ferroelectric devices. As a molecular unit, Ru dinuclear complexes bearing both 2, 3, 5, 6-tetra(2-pyridyl) pyrazine(tppz) bridging ligand and tetrapod phosphonate anchors have been synthesized and immobilized on the solid surface. Starting from the self-assembled monolayer, sequential coordination of Zr ion with the Ru complex leads to the multilayer films by layer-by-layer(LbL) method successfully on an indium tin oxide(ITO) electrode. Upon the oxidation of the multilayer films, two successive oxidation processes have been observed, in which the polarizable mixed-valence state was formed in the multilayer films after the first oxidation.
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