Institute for Materials Chemistry and Engineering, Kyushu University


LAST UPDATE 2017/02/25

  • 研究者氏名
    Researcher Name

    藤田克彦 Katsuhiko FUJITA
    准教授 Associate Professor
  • 所属
    Professional Affiliation

    Institute for Materials Chemistry and Engineering, Kyushu University

    Division of Advanced Device Materials, Photonic Materials
  • 研究キーワード
    Research Keywords

    Organic electronics
    Polymer semiconductor
    Organic thin film
    Organic photovoltaic cell
Research Subject
Development of device fabrication process and materials in organic electronics

研究の背景 Background


Conventional semiconductor devices based on silicon crystal have been developed by the improvement of fine processing technology. On the other hand, soft organic semiconductor devices have significant advantage that they enable fabricating flexible devices and producing low-cost large area devices by use of printing technology. Nowadays, new materials and production technology have been developed and the device performance is getting improved rapidly. They are expecting to contribute the electronics industry in next generation.

研究の目標 Outcome


The improvement of organic device performance and the development of low-cost fabrication process are aimed by invention of original thin layer deposition system using insoluble materials which cannot be used for the organic devices in conventional ways. The other objective of our research is development of new organic devices utilizing exclusive characteristics of organic semiconductors.

研究図Research Figure

Fig.1. Schematic illustration of evaporative spray deposition using ultra dilute solution (ESDUS), which enables thin film deposition of organic semiconductor for organic electronic devices with fine layered structure. Fig.2.pover conversion efficiency of polymer light emitting diode fabricated by ESDUS (red), conventional spin (blue) Fig.3. Electron miscopy image of layered organic films prepared by ESDUS.

文献 / Publications

Appl. Phys Let. 102, 023302 (2013). Jpn, J. Appl. Phys. 896,451(2014). Org. Electr. 10, 834 (2009). 機能材料, 28(6), 42-46 (2008).