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Title: Efficient enhancement of hydrogen production by Ag/Cu{sub 2}O/ZnO tandem triple-junction photoelectrochemical cell

Highly efficient semiconductor photoelectrodes for solar hydrogen production through photocatalytic water splitting are a promising and challenge solution to solve the energy problems. In this work, Ag/Cu{sub 2}O/ZnO tandem triple-junction photoelectrode was designed and prepared. An increase of 11 times of photocurrent is achieved in the Ag/Cu{sub 2}O/ZnO photoelectrode comparing to that of the Cu{sub 2}O film. The high performance of the Ag/Cu{sub 2}O/ZnO film is due to the optimized design of the tandem triple-junction structure, where the localized surface Plasmon resonance of Ag and the hetero-junctions efficiently absorb solar energy, produce, and separate electron-hole pairs in the photocathode.
Authors:
; ; ; ; ; ; ; ; ; ;  [1] ; ;  [2]
  1. Center for Ion Beam Application and Center for Electron Microscopy, School of Physics and Technology, Wuhan University, Wuhan 430072 (China)
  2. International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049 (China)
Publication Date:
OSTI Identifier:
22398792
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 12; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COMPARATIVE EVALUATIONS; COPPER OXIDES; ELECTRIC CONTACTS; FILMS; HOLES; HYDROGEN PRODUCTION; PHOTOCATALYSIS; PHOTOCATHODES; PHOTOELECTROCHEMICAL CELLS; PLASMONS; RESONANCE; SEMICONDUCTOR JUNCTIONS; SEMICONDUCTOR MATERIALS; SILVER; SOLAR ENERGY; SURFACES; ZINC OXIDES