[17p-P01-1~16] 6.4 Thin films and New materials

[17p-P01-14] Composite of SnO₂ to Cu₂O photoelectrode by excimer laser assisted MOD process

〇(M1)Takeaki Takahashi¹, Masami Nishikawa¹, Takayuki Ishibashi¹, Tomohiko Nakajima², Tetsuo Tsuchiya² (1.Nagaoka Univ. of Tech., 2.AIST)

Keywords:

photoelectrode,excimer laser assisted MOD process

To improve the activity for water reduction of Cu₂O photoelectrodes, we prepared SnO₂/Cu₂O photoelectrode by an excimer laser assisted metal organic deposition process. The photocurrent caused by water reduction under visible-light irradiation in the SnO₂/Cu₂O electrode prepared increased. This would be due to the formation of a pn junction at the interface between SnO₂ and Cu₂O, promoting charge separation.