Researcher's Profile

March 1990	Ph.D, School of Engineering, The University of Tokyo(UTokyo)
April 1990	Research Associate, Institute of Materials Science, University of Tsukuba
November 1991	Assistant Professor, Institute of Materials Science, University of Tsukuba
August 1995	Visiting Assistant Professor, Dept. of Electrical Engineering, Stanford University
July 2003	Associate Professor, Institute of Applied Physics, University of Tsukuba
April 2008	Associate Professor, RCAST, UTokyo
April 2011	Professor, RCAST, UTokyo
July 2024	Project Professor, RCAST, UTokyo

　 　

New semiconductor materials and new quantum nanostructures are exploited to achieve high-efficiency photovoltaic solar energy conversion >40%. Research includes, (1) Development and thin-film epitaxial growth of new compound semiconductors for application to multifunction tandem solar cells, (2) Selforganized growth technology of three-dimensional quantum nanostructures and super lattices, and (3) Fabrication and characterization of high-efficiency multi-band solar cells based on quantum nanostructures.