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Study of bio-sensors based on ionic-liquid top-gated graphene field-effect transistors

Research Project

Project/Area Number 25600043
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Nanomaterials engineering
Research InstitutionAoyama Gakuin University

Principal Investigator

KOH Shinji  青山学院大学, 理工学部, 准教授 (50323663)

Co-Investigator(Renkei-kenkyūsha) YAMASHITA Ichiro  奈良先端科学技術大学院大学, 物質創成科学研究科, 教授 (30379565)
KAMIKUBO Hironari  奈良先端科学技術大学院大学, 物質創成科学研究科, 准教授 (20311128)
Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywordsグラフェン / イオン液体 / バイオセンサー / CVD / 電界効果トランジスタ
Outline of Final Research Achievements

We investigated on the following 3 subjects in order to realize bio-sensors based on the ionic-liquid top-gated graphene field effect transistors (FETs). (1) Through the comparative measurements using four types of ionic liquids, it was found that the mobility of the charge carriers systematically decreases with increasing capacitance of the ionic liquids, approximately proportional to the power of -0.8. The correlation can be attributed to the effect of the polaron formed at the ionic liquid/graphene interface. (2) Fabrication techniques for graphene solution-gated (SG) graphene FETs were established and pH sensing using the SGFET was demonstrated. (3) We have succeed in growing a single-layer graphene film on an Ir(111)/α-Al2O3(0001) substrate by using low pressure chemical vapor deposition (CVD).

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (7 results)

All 2015 2014 2013 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (5 results) (of which Invited: 1 results)

  • [Journal Article] Thermal Reversibility in Electrical Characteristics of Ultraviolet/Ozone-Treated Graphene2013

    • Author(s)
      Yana Mulyana, Masahiro Horita, Yasuaki Ishikawa, Yukiharu Uraoka, and Shinji Koh
    • Journal Title

      Appl. Phys. Lett.

      Volume: 103 Issue: 6 Pages: 3107-3111

    • DOI

      10.1063/1.4818329

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Characterizing Edge and Stacking Structure of Exfoliated Graphene by Photoelectron Diffraction2013

    • Author(s)
      F. Matsui, R. Ishii, H. Matsuda, M. Morita, S. Kitagawa, T. Matsushita, S. Koh, H. Daimon
    • Journal Title

      Japanese Jounal of Applied Physics

      Volume: 52 Issue: 11R Pages: 110110-110110

    • DOI

      10.7567/jjap.52.110110

    • NAID

      210000143031

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] Graphene for electrochemical sensor applications2015

    • Author(s)
      Shinji Koh
    • Organizer
      4th International Mini-Symposium on Coordination Chemistry for Advanced Materials
    • Place of Presentation
      青山学院大学(神奈川・相模原)
    • Year and Date
      2015-04-10
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Ir(111)/alpha-Al2O3(0001)基板を用いたグラフェンのLP-CVD成長2015

    • Author(s)
      齋藤 祐太, 島田 諒人, 児玉 英之, 澤邊 厚仁, 黄 晋二
    • Organizer
      第62回応用物理学会春季学術講演会
    • Place of Presentation
      東海大学(神奈川・平塚)
    • Year and Date
      2015-03-11
    • Related Report
      2014 Annual Research Report
  • [Presentation] CVD Growth of Graphene on Ir(111)/Al2O3(0001)2014

    • Author(s)
      Y. Saito, R. Shimada, H. Kodama, A. Sawabe and S. Koh
    • Organizer
      MRS-J/E-MRS国際ジョイントシンポジウム
    • Place of Presentation
      横浜情報文化センター(神奈川・横浜)
    • Year and Date
      2014-12-11
    • Related Report
      2014 Annual Research Report
  • [Presentation] UV/O3処理およびUV光照射による酸化還元後のグラフェンの伝達特性

    • Author(s)
      Yana Mulyana、上沼睦、石河泰明、黄晋二、浦岡行治
    • Organizer
      第61回応用物理学会春季学術講演会
    • Place of Presentation
      青山学院大学
    • Related Report
      2013 Research-status Report
  • [Presentation] UV/ O3 処理によるグラフェンの酸化及びUV 照射による非熱的還元

    • Author(s)
      Yana Mulyana,堀田昌宏,石河泰明,浦岡行治、黄晋二
    • Organizer
      第74回応用物理学会学術講演会
    • Place of Presentation
      同志社大学
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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