[10p-N104-1~18] 16.3 Bulk, thin-film and other silicon-based solar cells

△ [10p-N104-16] Investigation of carrier selective contact solar cells using two dimensional materials

〇Taiga Tsukushi¹, Tappei Nishihara¹, Tomohiko Hara², Yoshio Ohsita², Satoshi Yasuno³, Atsushi Ogura^1,4 (1.Meiji Univ., 2.Toyota Tech. Inst., 3.JASRI, 4.Meiji Renewable Energy Laboratory)

Keywords:solar cells, carrier selective contact, two dimensional materials

We investigated the possibility of two dimensional materials as a carrier selective layer for the c-Si solar cells. Especially, we focused on MoS₂, which has been reported many times as a two dimensional material. The MoS_x in this study was deposited by RF magnetron sputtering with a composition ratio of Mo:S=1:1.72. We evaluated the band bending at the MoS_x/c-Si interface using HAXPES, resulting in the c-Si band was bent downward. This result indicates that MoS_x is likely to work as an electronic contact in the carrier selective layer.