The Institute of Scientific and Industrial Research, Osaka University


LAST UPDATE 2017/02/26

  • 研究者氏名
    Researcher Name

    吉田秀人 Hideto YOSHIDA
    准教授 Associate Professor
  • 所属
    Professional Affiliation

    The Institute of Scientific and Industrial Research, Osaka University

    産業科学ナノテクノロジーセンター ナノ構造・機能評価研究分野
    Nanoscience and Nanotechnology Center , Department of Nanocharacterization for Nanostructures and Functions
  • 研究キーワード
    Research Keywords

    Characterization of nanostructures
    Carbon nanotube
    Nanoparticulate catalyst
Research Subject
Characterization of nanomaterials and nanodevices under actual environment

研究の背景 Background


The various devices around us are composed of structure-controlled nanomaterials. Due to the close relationship between the properties of these devices and the structures of the nanomaterials, it is essential that these structures be characterized at the atomic scale while the devices are functioning. In addition, it is essential to clarify the synthesis process of the nanomaterials from atoms and molecules in order to control their structure.

研究の目標 Outcome


We are aiming to clarify the atomic and electronic structure of nanomaterials and nanodevices when they actually exhibit their functions using environmental transmission electron microscopy (ETEM) that allows us to observe various dynamic phenomena in-situ at atomic scale. We also study the growth mechanism of nanomaterials, for instance carbon nanotubes, using ETEM. Through these studies, we are contributing to creating and developing novel nanomaterials and nanodevices and functions.

研究図Research Figure

Fig.1. Drastic disorder in the interlayer spacing of graphitic layers in a growing CNT from a Fig.2. Oxidation and reduction of the surfaces of Pt nanoparticles in reactive gases Fig.3. Gas species- and temperature-dependent change in shape of platinum nanoparticles on CeO2.

文献 / Publications

Nanoscale 6 (2014) 13113-13118. Carbon,70 (2014) 266-272. Nano Lett. 13 (2013) 3310-3314. Micron 43 (2012) 1176-1180.
Angew. Chem. Int. Ed. 50 (2011) 10157-10160. Appl. Phys. Express 4 (2011) 065001.