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

利用介孔材料创建新型电子材料及其在器件中的应用

• 批准号: 16F16371
• 负责人: 知京 豊裕
• 金额: $ 1.47万
• 依托单位: National Institute for Materials Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2016
• 资助国家: 日本
• 起止时间: 2016-10-07 至 2019-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16F16371/
• 关键词: mesoporous; Sol-gel; phase transformation; ion conductivity; oxide; multi layer; sol-gel; BaTiO3; SrTiO3; Sol-gel science; mesoporous frameworks; metal oxides; films; thermal stability; dielectrics; ferromagnetism; capacitors

Mesoporous HfO2 thin films (around 20 nm thick) were fabricated by sol-gel-based spin-coating process at 600 oC to realize the ion conducting media for the ionics (e.g. Na+ and K+ for rechargeable ion batteries) for battery application.. Another film of aluminum metal (10 nm thick) was deposited by DC sputtering to soak into the mesoporous to control the conductivity. The obtained mesostructured HfO2/Al2O3 films show rather good conductivity which is enough for bias for ion conduction. At the meantime, among all the thin films the mesostructured HfO2/Al2O3 composite thin films showed the smallest Nyquist arc diameter in 1 M KOH electrolyte, implying lower impedance at the electrode/electrolyte interface, reflecting better ions diffusion and movement.Also we have developed a mesostructured HfO2/Al2O3 composite thin films with much reduced leakage current compared to HfO2 or HfO2/Al thin films.We have reported simple chemical route for preparation of polycrystalline Ni-Co PBA thin films on the surface of silicon wafers. Several kinds of homogeneous pyramidal structures formed on the surface. The thin films showed paramagnetic properties which may allow applications of these materials in molecular spintronic devices. Our thin films did not show a negative magnetization compared to the previously reported PBAs thin films. This method could be extended for demonstrating multiferroic thin films by forming the multilayered or heterostructures for electric applications in the future.

介孔HFO2薄膜（约20 nm厚）是通过基于溶胶 - 凝胶基于600 oC的基于溶胶 - 凝胶的自旋涂层工艺来实现电池应用的离子电池（例如Na+和K+的离子导电介质）用于电池的应用。.铝金属（10 nm厚）的另一膜是通过dc sputter soak soak soak soak soak soak soak soak soak soak soak soak soak soak soak soak soak soak soak soak soak。获得的介质HFO2/AL2O3膜显示出相当好的电导率，足以使离子传导偏置。同时，在所有薄膜中，介质的HFO2/AL2O3复合薄膜均显示出1 M KOH电解质中最小的Nyquist弧直径HFO2或HFO2/Al薄膜。我们报道了简单的化学途径，用于在硅晶片表面制备多晶Ni-Co PBA薄膜。表面形成的几种均匀的锥体结构。薄膜显示出顺磁性的特性，这些特性可能允许这些材料在分子自旋装置中应用。与先前报道的PBAS薄膜相比，我们的薄膜没有显示出负磁化。可以扩展此方法，以通过在将来形成用于电动应用的多层或异质结构来证明多效薄膜。

项目成果

Chemical Synthesis of Multilayered Nanostructured Perovskite Thin Films with Dielectric Features for Electric Capacitors

用于电容器的具有介电特性的多层纳米结构钙钛矿薄膜的化学合成

• DOI: 10.1021/acsanm.7b00310
• 发表时间: 2018
• 期刊: ACS Applied Nano Materials
• 影响因子: 5.9
• 作者: Zakaria Mohamed Barakat;Nagata Takahiro;Matsuda Asahiko;Yasuhara Yudai;Ogura Atsushi;Hossain Md. Shahriar A.;Billah Motasim;Yamauchi Yusuke;Chikyow Toyohiro
• 通讯作者: Chikyow Toyohiro

Recent advances in Prussian blue and Prussian blue analogues: synthesis and thermal treatments

• DOI: 10.1016/j.ccr.2017.09.014
• 发表时间: 2017-12-01
• 期刊: COORDINATION CHEMISTRY REVIEWS
• 影响因子: 20.6
• 作者: Zakaria, Mohamed B.;Chikyow, Toyohiro
• 通讯作者: Chikyow, Toyohiro

Dual-textured Prussian Blue nanocubes as sodium ion storage materials

• DOI: 10.1016/j.electacta.2017.04.054
• 发表时间: 2017-06-20
• 期刊: ELECTROCHIMICA ACTA
• 影响因子: 6.6
• 作者: Kim, Dae Sik;Zakaria, Mohamed B.;Kim, Hansu
• 通讯作者: Kim, Hansu

Chemical Synthesis of Multilayered Nanostructured Perovskite Thin Films and Investigation of Dielectric Features

多层纳米结构钙钛矿薄膜的化学合成及介电特性研究

• 发表时间: 2018
• 作者: Dae Sik Kima; Mohamed B. Zakariab;Min-Sik Parkd;Azhar Alowasheeir,Saad M. Alshehrie,Yusuke Yamauchi;Hansu Kima;Mohamed B. Zakaria;Mohamed B. Zakaria
• 通讯作者: Mohamed B. Zakaria

Tanta University(Egypt)

坦塔大学（埃及）