| Presentation | 2005/4/14 Investigation for Crystal Structure of Ferroelectric Oligomer Thin Film by X-ray Pole Figure Method Shuichiro KUWAJIMA, Kenji ISHIDA, Toshihisa HORIUCHI, Hirofumi YAMADA, Kazumi MATSUSHIGE, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Exact discussion regarding the Form I (ferroelectric β phase) unit cell structure of vinylidene fluoride [VDF] oligomer has remained obscure in comparison with poly vinylidene fluoride [PVDF] or its copolymer [P(VDF/TrFE)]. To resolve it, form I thin films were prepared by controlling of substrate temperature during vacuum evaporation, and the unit cell structure was precisely investigated by in-plane and out-of-plane X-ray diffraction measurements. In the film with molecular direction normal to substrate, the c-axis corresponding to single molecular length due to the finite oligomer chain was determined for the first time. Moreover, it was found that the c-axis oriented perfectly normal to the substrate by X-ray pole figure measurement for 002 reflection. On the other hand, separable hk0 reflection peaks were observed by in-plane diffraction, which enabled to calculate the lattice parameters of a- and b- axis. As a result, the unit cell parameters of VDF oligomer form I structure was determined; orthorhombic, a=0.864nm, b=0.488nm and c=3.137nm. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | organic ferroelectric material / oligomer / crystal polymorph / unit cell / pole figure |
| Paper # | ED2005-7,SDM2005-7,OME2005-7 |
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| Conference Information | |
| Committee | ED |
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| Conference Date | 2005/4/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Electron Devices (ED) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Investigation for Crystal Structure of Ferroelectric Oligomer Thin Film by X-ray Pole Figure Method |
| Sub Title (in English) | |
| Keyword(1) | organic ferroelectric material |
| Keyword(2) | oligomer |
| Keyword(3) | crystal polymorph |
| Keyword(4) | unit cell |
| Keyword(5) | pole figure |
| 1st Author's Name | Shuichiro KUWAJIMA |
| 1st Author's Affiliation | Nanotechnology Support Project, Kyoto University() |
| 2nd Author's Name | Kenji ISHIDA |
| 2nd Author's Affiliation | Department of Electronic Science and Engineering, Kyoto University |
| 3rd Author's Name | Toshihisa HORIUCHI |
| 3rd Author's Affiliation | Department of Electronic Science and Engineering, Kyoto University |
| 4th Author's Name | Hirofumi YAMADA |
| 4th Author's Affiliation | Department of Electronic Science and Engineering, Kyoto University |
| 5th Author's Name | Kazumi MATSUSHIGE |
| 5th Author's Affiliation | Department of Electronic Science and Engineering, Kyoto University |
| Date | 2005/4/14 |
| Paper # | ED2005-7,SDM2005-7,OME2005-7 |
| Volume (vol) | vol.105 |
| Number (no) | 18 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |