Bottom-up Construction of Semi-Conductive/Ferroelectric Polymer Hybrid Nanofilms for Flexible Devices
| Project/Area Number |
16K17953
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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 |
Polymer/Textile materials
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| Research Institution | Tohoku University |
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Principal Investigator |
ZHU HUIE 東北大学, 多元物質科学研究所, 助教 (70754539)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | Bottom-up method / Ferroelectric polymer / Semi-conductive polymer / Non-volatile memories / Spin valves / Langmuir-Blodgett / Polymer blends / Semiconductive polymer / Nonvolatile memories / polarization / memory / polymer blends / Ferroelectricity / Polymer ferroelectrics / Nanosheet / Non-volatile memory |
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| Outline of Final Research Achievements |
Bottom-up preparation of ferroelectric poly(vinylidene fluoride) (PVDF) was succeeded at nanometer-precision for developing memory devices including resistive nonvolatile memories and spin-valves, etc. First, ferroelectric PVDF/semiconductive polythiophene hybrid monolayers were successfully fabricated at varying blend ratios from the Langmuir-Blodgett method. The PVDF matrix in the hybrid nanosheets contains almost 100% ferroelectric phase. Ferroelectric non-volatile memories were realized owing to the ferroelectricity-manipulated resistive switching. On the other hand, the PVDF LB nanosheets were applied as insulator tunnel layer in spin valves of Co/PVDF/Fe3O4. It is noteworthy that the magnetoresistance (MR) effect was even observed at 300 K with a MR ratio exceeding 2.5%, which is achieved for the first time in such organic devices. Therefore, the ferroelectric PVDF hybrid nanosheets are promising candidates for various organic electronics with outstanding performance.
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Report
(3 results)
Research Products
(32 results)
