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Fumio Kawamura, Yelim Song, Hidenobu Murata, Hitoshi Tampo, Takehiko Nagai, Takashi Koida, Masataka Imura, Naoomi Yamada. Tunability of the bandgap of SnS by variation of the cell volume by alloying with A.E. elements. SCIENTIFIC REPORTS. 2022. 12. 1. 7434
Changwook Jeong, Takehiko Nagai, Shogo Ishizuka, Hitoshi Tampo, Shibata Hajime, Shinho Kim, Yangdo Kim. Examination of Suitable Bandgap Grading of Cu(InGa)Se 2 Bottom Absorber Layers for Tandem Cell Application. physica status solidi (a). 2021
Ilyeong Kwon, Takehiko Nagai, Shogo Ishizuka, Hitoshi Tampo, Hajime Shibata, Shinho Kim, Yangdo Kim. Improving the performance of pure sulfide Cu(InGa)S2 solar cells via injection annealing system. Current Applied Physics. 2021. 22. 71-76