发明申请
- 专利标题: PHOTOELECTROCHEMICAL CELL AND ENERGY SYSTEM USING THE SAME
- 专利标题(中): 光电化学细胞和能量系统
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申请号: US12811034申请日: 2009-10-29
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公开(公告)号: US20100282601A1公开(公告)日: 2010-11-11
- 发明人: Takaiki Nomura , Takahiro Suzuki , Kenichi Tokuhiro , Tomohiro Kuroha , Noboru Taniguchi , Kazuhito Hatoh , Shuzo Tokumitsu
- 申请人: Takaiki Nomura , Takahiro Suzuki , Kenichi Tokuhiro , Tomohiro Kuroha , Noboru Taniguchi , Kazuhito Hatoh , Shuzo Tokumitsu
- 申请人地址: JP Kadoma-shi, Osaka
- 专利权人: PANASONIC CORPORATION
- 当前专利权人: PANASONIC CORPORATION
- 当前专利权人地址: JP Kadoma-shi, Osaka
- 优先权: JP2008-279415 20081030; JP2009-096315 20090410
- 国际申请: PCT/JP2009/005763 WO 20091029
- 主分类号: C25B9/06
- IPC分类号: C25B9/06
摘要:
A photoelectrochemical cell (100) includes: a semiconductor electrode (120) including a conductor (121) and an n-type semiconductor layer (122); a counter electrode (130) connected electrically to the conductor (121); an electrolyte (140) in contact with the surfaces of the n-type semiconductor layer (122) and the counter electrode (130); and a container (110) accommodating the semiconductor electrode (120), the counter electrode (130) and the electrolyte (140). The photoelectrochemical cell (100) generates hydrogen by irradiation of the n-type semiconductor layer (122) with light. In the semiconductor electrode (120), relative to the vacuum level, (I) the band edge levels of the conduction band and the valence band in the surface near-field region of the n-type semiconductor layer (122), respectively, are equal to or higher than the band edge levels of the conduction band and the valence band in the junction plane near-field region of the n-type semiconductor layer (122) with the conductor (121), (II) the Fermi level of the junction plane near-field region of the n-type semiconductor layer (122) is higher than the Fermi level of the surface near-field region of the n-type semiconductor layer (122), and (III) the Fermi level of the conductor (121) is higher than the Fermi level of the junction plane near-field region of the n-type semiconductor layer (122).
公开/授权文献
- US08236146B2 Photoelectrochemical cell and energy system using the same 公开/授权日:2012-08-07