Patent ID: 9708718
Date: 2017-07-18
CPC Classifications: C01B,C25B,H01L,Y02E,Y02P

Claim:
1. A hydrogen production device comprising: a photoelectric conversion part having a light acceptance surface and a back surface; a first electrode provided on the acceptance surface of the photoelectric conversion part; a second electrode provided on the back surface of the photoelectric conversion part; a first insulating part provided on the second electrode and the side surface of the photoelectric conversion part, a first gas generation part provided on the second electrode, a second gas generation part provided on the first insulating part, and a first conductive part connecting the first electrode to the second gas generation part, wherein one of the first gas generation part and the second gas generation part is a hydrogen generation part to generate H2 from an electrolytic solution, and the other thereof is an oxygen generation part to generate O2 from the electrolytic solution, at least one of the first gas generation part and the second gas generation part is plural, and the photoelectric conversion part is electrically connected to the first gas generation part and the second gas generation part so that an electromotive force generated by a light acceptance of the photoelectric conversion part is supplied to the first gas generation part and the second gas generation part, the first gas generation part and the second gas generation part are provided alternately and in parallel, the first gas generation part is electrically connected to the back surface of the photoelectric conversion part via the second electrode, and the second gas generation part is electrically connected to the light acceptance surface of the photoelectric conversion part via the first electrode and the first conductive part.