| 摘要 |
A hydrogen production device of the present invention includes a photoelectric conversion portion having a light-receiving surface and a back surface, a first electrolysis electrode provided on the back surface, and a second electrolysis electrode provided on the back surface. As a result of reception of light by the photoelectric conversion portion, a potential difference is generated between a first area on the back surface and a second area on the back surface, the first area becomes electrically connected to the first electrolysis electrode, and the second area becomes electrically connected to the second electrolysis electrode. When the first electrolysis electrode and the second electrolysis electrode contact an electrolyte solution, the first electrolysis electrode forms a hydrogen generation portion that generates H2 from the electrolyte solution using an electromotive force generated as a result of reception of light by the photoelectric conversion portion and the second electrolysis electrode forms an oxygen generation portion that generates O2 from the electrolyte solution using the electromotive force. |
