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Creative research for clean energy generation using solar energy

Research Supervisor
Masafumi Yamaguchi
Principal Professor, Toyota Technological Institute
Year Started


This research covers solar photovoltaic technology that converts sunlight directly into electrical energy encompassing; research and development that contributes to the creative clean energy generation for the future, including the creation of chemical fuel technologies for hydrogen generation using solar energy; and technology for the simultaneous production of electrical energy and chemical fuel.
Specifically, the target of the research and development are solar cells and materials composed of silicon crystals and thin films, compound semiconductors, dye-sensitized and organic materials, and new super high-efficiency solar cells, in addition to the creation of useful fuels, such as hydrogen, and the simultaneous creation of valuable material and clean energy using solar energy. In this research area, we will focus on the basics of material search, fundamental physical analysis (light absorption, charge separation, material deterioration, and so on), and on new principles for realizing higher efficiency and longer lifetime. We will perform creative research and development that establishes the breakthrough technologies in the future. To this end, the research will be a fusion of material sciences and device physics; consequently to create breakthrough technologies in this area, we will combine the expertise of researchers from the different fields of physics, chemistry, and electronic engineering and utilize cutting edge nanotechnology to promote research and development by combining the strengths of different disciplines.

Strategic Sector

Creation of natural light energy conversion material and utilization basic technology through the fusion of different fields

Research Projects

Year Started : 2010
Research DirectorAffiliationResearch Project
Hironori Katagiri Professor, Nagaoka National College of Technology
Institute of National Colleges of Technology, Japan
Improvement of performance of thin film compound semiconductor photovoltaic cells towards the after next generation.
Naoteru Shigekawa Professor, Osaka Prefecture University R&D on nitride-based heterogeneous tandem solar cells on Si substrates
Takashi Suemasu Professor, University of Tsukuba Si-based thin-film solar cells using a semiconducting silicide pn junction
Hideki Matsumura Professor, JAIST (Japan Advanced Institute of Science and Technology) High Efficiency Crystalline Silicon Solar Cells Fabricated by Cat-CVD Technology
Hiroko Yamada Associate Professor, Nara Institute of Science and Technology Construction of organic thin-film solar cells with innovative solution-processible organic materials
Year Started : 2009
Research DirectorAffiliationResearch Project
Hiroshi Irie Professor, University of Yamanashi Efficient Visible Light-Sensitive Photocatalysts for Water Splitting
Hiroaki Okamoto Professor, Graduate School of Engineering Science, Osaka University Hydrogenated amorphous silicon free from light-induced degradation
Shin-ichi Satoh Professor, University of Hyogo Complete utilization of "light" and "carrier" by the control of interface between surface layer and photovoltaic materials.
Liyuan Han Managing Director, National Institute for Materials Science Device Physics of Dye-sensitized Solar Cells
Masahiro Hiramoto Professor, National Institutes of Natural Sciences, Institute for Molecular Science Bandgap Science for Organic Solar Cells
Yoshiji Horikoshi Professor, School of Advanced Science and Engineering,WASEDA University High efficiency thin film solar cells with enhanced optical absorption by excitons
Kiyoshi Yasutake Professor, Osaka University New Formation Process of Solar-Grade Si Material Based on Atmospheric-Pressure Plasma Science
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