Makoto KONAGAI received the B.E., M.E and D.E degrees from Tokyo Institute of Technology in 1972, 1974 and 1977, respectively. Since 1977, he has been with Tokyo Institute of Technology, where he has been engaged in the development of solar cell materials and devices. He has been working for Tokyo City University since April 2015. He has authored over 400 publications in international journals and over 500 international presentations. He organized PVSEC-9 (Miyazaki, 1996) and WCPEC-6(Kyoto, 2014). He has received the PVSEC Award (1999), Medal with Purple Ribbon (2013) and Hamakawa Award(2014). At present he is Chairperson of the PVSEC International Advisory Committee.

Topic: Recent Progress of Rib Si Solar Cell Technology and Its Application to InGaP//Si Spectrum Splitting Solar Cell