Title:
PHOTOCATALYST ELECTRODE FOR WATER-SPLITTING
Document Type and Number:
Japanese Patent JP2015179768
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a photocatalyst electrode which is large in photoelectric current value and enables the facilitation of water-splitting reaction by light with a high conversion efficiency.SOLUTION: A photocatalyst electrode for water-splitting comprises a p-type semiconductor layer, a functional layer, an n-type semiconductor layer, and a promoter for reactions, which are provided on a current collecting electrode in this order. The functional layer is composed of a semiconductor layer which satisfies the following expression (I): VBMp>VBMf (I) (where VBMp represents a potential [eV] at an upper end of a valence band of the p-type semiconductor layer with respect to a vacuum level; and VBMf represents a potential [eV] at an upper end of a valence band of the functional layer to the vacuum level).
Inventors:
MINEGISHI KO
DOMEN KAZUNARI
DOMEN KAZUNARI
Application Number:
JP2014057049A
Publication Date:
October 08, 2015
Filing Date:
March 19, 2014
Export Citation:
Assignee:
UNIV TOKYO
International Classes:
H01L31/0224; B01J27/045; B01J35/02; C01B3/04; H01L31/0749
Attorney, Agent or Firm:
Axis International Patent Business Corporation
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