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Design of functional materials based on surface modification

Research Project

Project/Area Number 25288040
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Functional solid state chemistry
Research InstitutionKeio University

Principal Investigator

Einaga Yasuaki  慶應義塾大学, 理工学部, 教授 (00322066)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2015: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2013: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
Keywords界面 / 光制御 / ダイヤモンド / 磁性 / フォトクロミズム / 超伝導
Outline of Final Research Achievements

Previously, reversible photoswitching of magnetization has been present by interfacing photoresponsive compounds. This strategy could apply to other properties by the appropriate integration of photoresponsive compounds and functional materials. First, superconducting properties of diamond were compared between hydrogen- and oxygen-termination. The critical current density was larger in the H-termination, compared to the O-one, which were reversibly modulated through surface modification. Then, a photoswitchable superconductor was prepared and characterized, in which a photochromic azobenzene molecular layer was immobilized onto the superconducting diamond. The critical current density was controlled reversibly upon photoisomerization of an azobenzene molecule. This effect is explained as the reversible photoisomerization inducing an inhomogeneous electron distribution along the superconducting diamond surface.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • Research Products

    (19 results)

All 2016 2015 2014 2013 Other

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Acknowledgement Compliant: 4 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] A New Family of Anionic FeIII Spin Crossover Complexes Featuring a Weak-field N2O4 Coordination Octahedron2016

    • Author(s)
      Kazuyuki Takahashi, Kiko Kawamukai, Mitsunibu Okai, Tomoyuki Mochida, Takahiro Sakurai, Hitoshi Ohta, Takashi Yamamoto, Yasuaki Einaga, Yoshihito Shiota, Kazunari Yoshizawa
    • Journal Title

      Chem. Eur. J.

      Volume: 22 Issue: 4 Pages: 1253-1257

    • DOI

      10.1002/chem.201504883

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Co-Fe Prussian Blue Analogue Intercalated into Diamagnetic Mg-Al Layered Double Hydroxides2016

    • Author(s)
      C. Zhang, T.Yamamoto, Y. Einaga
    • Journal Title

      Nanomater. Nanotech.

      Volume: 未定

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Photochromism-Induced Amplification of Critical Current Density in Superconducting Boron-Doped Diamond with an Azobenzene Molecular Layer2015

    • Author(s)
      Keisuke Natsui, Takashi Yamamoto, Miku Akahori, Yasuaki Einaga
    • Journal Title

      ACS Applied Materials & Interfaces

      Volume: 7 Issue: 1 Pages: 887-894

    • DOI

      10.1021/am5074613

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Antiferromagnetic Transition in a Novel Star-Shaped High Spin Fe(III) Tetranuclear Cluster from a Mononuclear Coordination Anion Featuring π-Extended Schiff Base Ligands2015

    • Author(s)
      Kazuyuki Takahashi, Kiko Kawamukai, Tomoyuki Mochida, Takahiro Sakurai, Hitoshi Ohta, Takashi Yamamoto, Yasuaki Einaga, Hatsumi Mori, Yasuyuki Shimura, Toshiro Sakakibara, Takumi Fujisawa, Akira Yamaguchi, Akihiko Sumiyama
    • Journal Title

      Chem. Lett.

      Volume: 44 Issue: 6 Pages: 840-842

    • DOI

      10.1246/cl.150196

    • NAID

      130005074605

    • Related Report
      2015 Annual Research Report 2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Novel Fe(II) spin crossover complexes involving a chalcogen-bond and pai-stacking interactions with a paramagnetic and nonmagnetic M(dmit)2 anion (M = Ni, Au; dmit = 4,5-dithiolato-1,3-dithiole-2- thione)2015

    • Author(s)
      Mitsunobu Okai, Kazuyuki Takahashi, Takahiro Sakurai, Hitoshi Ohta, Takashi Yamamoto, Yasuaki Einaga
    • Journal Title

      J. Mater. Chem. C

      Volume: 3 Issue: 30 Pages: 7858-7864

    • DOI

      10.1039/c5tc00859j

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Synergistic Spin Transition between Spin Crossover and Spin-Peierls-like Singlet Formation in the Halogen-Bonded Molecular Hybrid System: [Fe(Iqsal)2][Ni(dmit)2](CH3CN)(H2O)2014

    • Author(s)
      K. Fukuroi et al.
    • Journal Title

      Angew. Chem. Int. Ed

      Volume: 53 Issue: 7 Pages: 1983-1986

    • DOI

      10.1002/anie.201309865

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structure-Distortion-Induced Photomagnetic Effect in Azobenzene/Polyoxometalate Langmuir-Blodgett Films2013

    • Author(s)
      Takashi Yamamoto, Yasushi Umemura, Yasuaki Einaga
    • Journal Title

      Dalton Transactions

      Volume: 42 Issue: 45 Pages: 16014-16020

    • DOI

      10.1039/c3dt51402a

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Modulation of Critical Current Density in Polycrystalline Boron-Doped Diamond by Surface Modification2013

    • Author(s)
      Keisuke Natsui, Takashi Yamamoto, Takeshi Watanabe, Yoichi Kamihara, Yasuaki Einaga
    • Journal Title

      Physica Status Solidi B

      Volume: 250 Issue: 9 Pages: 1943-1949

    • DOI

      10.1002/pssb.201349058

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Presentation] 層状複水酸化物ナノシートの光磁気物性2016

    • Author(s)
      山本 崇史・坪井 知也・栄長 泰明
    • Organizer
      日本化学会・第96春季年会
    • Place of Presentation
      同志社大学(京都府・京田辺市)
    • Year and Date
      2016-03-24
    • Related Report
      2015 Annual Research Report
  • [Presentation] Photoresponsive Magnetic Nanoparticle Composed of Spiropyran and FePt2015

    • Author(s)
      Kento Tsuda, Tomoko Hosomi, Elena Yuryeva, Takashi Yamamoto, Yasuaki Einaga
    • Organizer
      The International Chemical Congress of Pacific Basin Societies 2015 (PACIFICHEM 2015)
    • Place of Presentation
      Honolulu (USA)
    • Year and Date
      2015-12-15
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 超伝導ダイヤモンドにおける臨界電流密度の光制御2015

    • Author(s)
      夏井 敬介・山本 崇史・赤堀 未来・栄長 泰明
    • Organizer
      第29回・ダイヤモンドシンポジウム
    • Place of Presentation
      東京理科大学(東京都・葛飾区)
    • Year and Date
      2015-11-17
    • Related Report
      2015 Annual Research Report
  • [Presentation] Click Functionalization of Boron-Doped Diamond Electrode2015

    • Author(s)
      Takashi Yamamoto, Miku Akahori, Keisuke Natsui, Yasuaki Einaga
    • Organizer
      The 21st China-Japan Bilateral Symposium on Intelligent Electrophotonic Materials and Molecular Electronics (SIEMME’21)
    • Place of Presentation
      Xiamen (China)
    • Year and Date
      2015-09-10
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 磁性-半導体ナノシート積層体における垂直磁気異方性の光変調2014

    • Author(s)
      坪井 知也・難波 広彰・山本 崇史・栄長 泰明
    • Organizer
      2014年 光化学討論会
    • Place of Presentation
      北海道大学(札幌市)
    • Year and Date
      2014-10-11 – 2014-10-13
    • Related Report
      2014 Annual Research Report
  • [Presentation] ホウ素ドープダイヤモンドにおける超伝導特性の光変調2014

    • Author(s)
      山本 崇史・赤堀 未来・夏井 敬介・栄長 泰明
    • Organizer
      2014年 光化学討論会
    • Place of Presentation
      北海道大学(札幌市)
    • Year and Date
      2014-10-11 – 2014-10-13
    • Related Report
      2014 Annual Research Report
  • [Presentation] Functionalization of Superconducting Diamond via Electro-Click Chemistry2014

    • Author(s)
      Miku Akahori,Keisuke Natsui, Takashi Yamamoto, Yasuaki Einaga
    • Organizer
      65th Annual Meeting of the International Society of Electrochemistry
    • Place of Presentation
      Lausanne, Switzerland
    • Year and Date
      2014-08-31 – 2014-09-05
    • Related Report
      2014 Annual Research Report
  • [Presentation] バイオ応用に資する室温強磁性ナノ粒子の創製2014

    • Author(s)
      山本 崇史・細美 朋子・青木 寛・長崎 幸夫・栄長 泰明
    • Organizer
      日本化学会・第94春季年会
    • Place of Presentation
      名古屋
    • Related Report
      2013 Annual Research Report
  • [Presentation] ホウ素ドープダイヤモンドにおける超伝導特性の光制御2014

    • Author(s)
      夏井 敬介・赤堀 未来・山本 崇史・栄長 泰明
    • Organizer
      日本化学会・第94春季年会
    • Place of Presentation
      名古屋
    • Related Report
      2013 Annual Research Report
  • [Presentation] 磁性―半導体ナノシート積層体における磁気特性2014

    • Author(s)
      坪井 知也・難波 広彰・山本 崇史・栄長 泰明
    • Organizer
      日本化学会・第94春季年会
    • Place of Presentation
      名古屋
    • Related Report
      2013 Annual Research Report
  • [Presentation] Functionalization of Boron-Doped Diamond by Surface Click Modification

    • Author(s)
      Miku Akahori, Keisuke Natsui, Takashi Yamamoto, Yasuaki Einaga
    • Organizer
      China-Japan Bilateral Symposium on Intelligent Electrophotonic Materials and Molecular Electronics (SIEMME’ 19)
    • Place of Presentation
      北京(中国)
    • Related Report
      2013 Annual Research Report

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Published: 2013-05-21   Modified: 2019-07-29  

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