• 高密度共役

  • softcrystals
  • Grant-inAid for Scientific Research on Innovatived Areas 'Stimuli-responsive Chemical Species for the Creation of Functional Molecules'
  • Advanced Low Carbon Technology Research and Development Program
  • Adaptable and Seamless Technology transfer Program through Targed-driven R&D
  • Grant-inAid for Scientific Research on Innovatived Areas 'Emergence of Highly Elaborated pi-Space and Its Function'
  • Grant-in-Aid for Scientific Research on Priority Areas 'Photochromism'
  • Grant-in-Aid for Scientific Research on Priority Areas 'Photo-functional Interfaces'


  • Osaka Prefecture University
  • School of Engineering/Graduate School of Engineering
  • Major of Material Science and Engineering
  • Research Organization for 21st Century, The Research Institute for Molecular Electronic Devices
  • Seminar for Organic Chemistry, Shirasagi Seminar


Research Field

  Development of photochemical reactions, which are initiated with light as an ecofriendly energy source, is important since such reactions are contrastive to thermal reactions. Meanwhile, electron-transfer reaction is one of the most fundamental chemical phenomena. They also concern with our daily life such as human's visual recognition system and recent industrial technologies.
  Focusing on the photochemical and electron-transfer reactions of organic compounds, we are studying on novel phenomena, mechanisms, and their potential applications. In photoinduced electron-transfer reactions, highly reactive intermediates such as radical cations and biradicals are involved. We are elucidating their mechanisms by various methods based on organic and physical chemistry such as the laser flash photolysis. Recently, an application of back electron-transfer process to the luminescence system led us a successful observation of a novel thermoluminescence phenomenon from electronically excited triplet biradicals and a trial manufacturing of organic radical light-emitting devices (ORLEDs). We are also interested in development of organic materials for semiconductor, light-emitting diode, and solar-energy conversion.