"T.Fujita,M.Kawamura,M.Nishijima,S.Oonishi,Y.Hidaka,Akira Yamada,M.Konagai","High-quality chalcopyrite-based materials for tandem-type solar cells","International Symposium on Innovative Solar Cells 2009",,,,,,2009,Mar.
"Li Zhang,Mitsutaka Nishijima,AKIRA YAMADA,MAKOTO KONAGAI","Growth of Cu(In,Ga)Se2 thin films using ionization Ga source and application for solar cells",,"Phys. Status Solidi C",,"Vol. 6","No. 5","pp. 1273-1277",2009,Feb.
"Akira Yamada,M. Kawamura,M. Nishijima,M. Konagai","High-performance Cu(InGa)Se2 thin-film solar cells grown with active sources","18th International Photovoltaic Science and Engineering Conference and Exhibition",,,,,,2009,Jan.
"Zhang Li,Mitsutaka Nishijima,Akira Yamada,Makoto Konagai","Growth of Cu(In0.3,Ga0.7)Se2 thin films using ionization Ga source and application for solar cells","16th International Conference on Ternary and Multinary Compounds",,,,,,2008,Apr.