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Title: Composition dependence of the photochemical reduction of Ag{sup +} by as-grown Pb(Zr{sub x}Ti{sub 1−x})O{sub 3} films on indium tin oxide electrode

Photochemical growth of metal particles on ferroelectric films has usually been found to depend on polarization effect solely. This research exploits the interplay of the film/electrode interface barrier and depolarization field on the photoreduction of Ag{sup +} to Ag onto Pb(Zr,Ti)O{sub 3} (PZT) films deposited on indium tin oxide (ITO) electrodes. Ag nanoparticles are observed on the as-grown polycrystalline PZT films without poling, while the particle size and density are closely related to the concentration of Zr in PZT and the poling direction. The enhancement on the photoelectrochemical properties of the ITO/PZT photocathode by the decoration of Ag nanoparticles is finally demonstrated.
Authors:
; ; ; ; ; ;  [1]
  1. Jiangsu Key Laboratory of Thin Films and Department of Physics, Soochow University, Suzhou 215006 (China)
Publication Date:
OSTI Identifier:
22217925
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 103; Journal Issue: 10; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; FERROELECTRIC MATERIALS; INDIUM; NANOSTRUCTURES; OZONE; PARTICLE SIZE; PHOTOCATHODES; PHOTOCHEMISTRY; POLYCRYSTALS; PZT; REDUCTION; SEMICONDUCTOR MATERIALS; SILVER; SILVER IONS; THIN FILMS; TIN OXIDES