The Institute of Scientific and Industrial Research, Osaka University


LAST UPDATE 2018/06/04

  • 研究者氏名
    Researcher Name

    井上恒一 Koichi INOUE
    准教授 Associate Professor
  • 所属
    Professional Affiliation

    The Institute of Scientific and Industrial Research, Osaka University

    Department of Semiconductor Physics
  • 研究キーワード
    Research Keywords

    Raman Scattering
    Graphene, Carbon nanotubes
    Optical Physics
Research Subject
Basic studies of innovative devices using nano-carbon materials

研究の背景 Background


Technology of semiconductor devices brings us a large profit and becomes indispensable in modern life.

It is important to study the fabrication and characterization of innovative devices using newly developed materials such as nano-cabons.

研究の目標 Outcome


Nano-carbon materials, graphene and nano-tubes, are very interesting in material physics and very promising in the device applications. New growth methods of graphene under the strong laser irradiation are studied. Characterization of graphene and carbon nano-tubes is also studied by Raman scattering experiments for the fabrication of functional nano-carbon materials. 

研究図Research Figure

Fig.1. Schematic of graphene channel formation by scanning laser beam across the substrate, and the optical microscope image of the fabricated sample. Fig.2. Compilation of Raman scattering spectra of bilayer graphene under several external electric fields. The insets in the left side show the schematic setup of bilayer graphene FET with transparent ionic liquid and a typical spectrum composed into two components. Fig.3. Schematic image (a) and reflecting microscope image (b) of the laser-irradiated area in a Ni/polymer film where the graphene is grown on the polymer substrate. The size of graphene and the growth temperature are calculated based on a theoretical model (c).

文献 / Publications

Appl. Phys. Express 6, 105101 (2013).  J. Phys. Soc. Jpn. 83, 034703 (2014).  J. J. Appl.Phys. 56. 075102(2017).