2017 Fiscal Year Annual Research Report
メゾポーラス材料を使った新しい電子材料の創生とデバイスへの応用
| Project/Area Number |
16F16371
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
知京 豊裕 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, グループリーダー、主任研究者 (10354333)
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| Co-Investigator(Kenkyū-buntansha) |
MOHAMED MOHAMED 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, 外国人特別研究員
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| Project Period (FY) |
2016-10-07 – 2019-03-31
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| Keywords | oxide / multi layer / sol-gel / BaTiO3 / SrTiO3 |
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| Outline of Annual Research Achievements |
Mesoporous metal oxide thin films can offer a good template for printing scalable strained inorganic crystals in the pores. We are the first report to use mesoporous materials for vertical strain engineering in nanostructured SrTiO3 (STO) and BaTiO3 (BTO) layers through an easy chemical method. The ferroelectric properties are improved in case of highly strained mesostructured STO/BTO composite thin films. This concept was further applied recently for the preparation of multilayered hybrid thin films composed of nanostructured STO and BTO layers. However the film did not show a smaller leak current. Therefore tin this year,we have developed multilayered hybrid thin films composed of nanostructured STO and BTO layers by a chemical sol-gel method which shows good dielectric properties and the highest Curie temperature (Tc) at around 280 °C compared to STO/BTO previously reported, which is promising for their potential application in electric capacitors at high temperatures.
We have managed the synthesis of various Prussian blue (PB) and PB analogues (PBAs) and employed them in synthesis of functional materials for energy-related applications. Additionally, we have co-authored many articles and one review convey the-state-of-the-art synthesis and thermal treatments of PB and PBAs.
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| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
We have already performed to show the first report to use mesoporous materials for vertical strain engineering in nanostructured SrTiO3 (STO) and BaTiO3 (BTO) layers through an easy chemical method last year and this year, to achieve more smaller leak current of BaTiO3/SrTiO3 layers, We have developed multilayered hybrid thin films composed of nanostructured STO and BTO layers by a chemical sol-gel method which shows good dielectric properties and the highest Curie temperature (Tc) at around 280 °C compared to STO/BTO previously reported, which is promising for their potential application in electric capacitors at high temperatures.
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| Strategy for Future Research Activity |
1) Developing more multiferroics (mixing ferroelectric materials with high-k materials
2) Engineering strains in various inorganic materials (e.g. transition metal oxides and composites) thin films for improving the dielectric properties.
3) Assembly of crystalline PB and PBAs thin films for PBA-based nanodevices to work efficiently at elevated temperatures.
4) Deriving various nanostructured inorganic materials and hybrids using PB, PBAs, and carbon materials for energy-related applications.e and magnetic materials.
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Research Products
(14 results)
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[Journal Article] Three-Dimensional Macroporous Graphitic Carbon for Supercapacitor Application2018
Author(s)
R. R. Salunkhe, J. Wang, A. Azhar, J. Lin, V. Malgras, Y. Bando, Mohamed B. Zakaria, A. Ali Alshehri, J. Kim, Y. Yamauchi, K. C.-W. Wu
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Journal Title
ChemistrySelect,
Volume: 3
Pages: 4522-4526
DOI
Peer Reviewed
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[Journal Article] Gold Nanoparticles Supported on Mesoporous Iron Oxide for Enhanced CO Oxidation Reaction2018
Author(s)
S. Tanaka, J. Lin, Y. V. Kaneti, S. Yusa, Y. Jikihara, T. Nakayama, Mohamed B. Zakaria, A. A. Alshehri, J. You, M. S. A. Hossain, Y. Yamauchi,
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Journal Title
Nanoscale,
Volume: 10
Pages: 4779-4785
DOI
Peer Reviewed
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