Application of weak ferromagnetic BiFeO3 films as the photoelectrode material under visible-light irradiation

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	Application of weak ferromagnetic BiFeO3 films as the photoelectrode material under visible-light irradiation; Application of weak ferromagnetic BiFeO3 films as the photoelectrode material under visible-light irradiation
	X. Y. Chen; T. Yu; F. Gao; H. T. Zhang; L. F. Liu; Y. M. Wang; Z. S. Li; Z. G. Zou; J. M. Liu
	2007 ; 2007
发表期刊	Applied Physics Letters ; Applied Physics Letters
ISSN	0003-6951 ; 0003-6951
卷号	91 期号:2
摘要	BiFeO3 films prepared by pulsed laser deposition on Pt/TiO2/SiO2/Si substrates were studied as photoelectrode for water splitting. Under visible-light irradiation, the photocurrent intensity of the polycrystalline BiFeO3 film was found to double that of the amorphous one in a three-electrode cell. The incident photon to current conversion efficiency for the polycrystalline BiFeO3 electrode was approximately 16% at 350 nm and 7% at 530 nm at 1.5 V (versus saturated calomel electrode). The ferromagnetism of the amorphous BiFeO3 film was an order of magnitude weaker than that of the polycrystalline one, supporting the "size effect" explanation for magnetic origin. (C) 2007 American Institute of Physics.; BiFeO3 films prepared by pulsed laser deposition on Pt/TiO2/SiO2/Si substrates were studied as photoelectrode for water splitting. Under visible-light irradiation, the photocurrent intensity of the polycrystalline BiFeO3 film was found to double that of the amorphous one in a three-electrode cell. The incident photon to current conversion efficiency for the polycrystalline BiFeO3 electrode was approximately 16% at 350 nm and 7% at 530 nm at 1.5 V (versus saturated calomel electrode). The ferromagnetism of the amorphous BiFeO3 film was an order of magnitude weaker than that of the polycrystalline one, supporting the "size effect" explanation for magnetic origin. (C) 2007 American Institute of Physics.
部门归属	nanjing univ, ecomat & renewable energy res ctr, natl lab solid state microstruct, nanjing 210093, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china.;yu, t (reprint author), nanjing univ, ecomat & renewable energy res ctr, natl lab solid state microstruct, nanjing 210093, peoples r china;yutao@nju.edu.cn ; nanjing univ, ecomat & renewable energy res ctr, natl lab solid state microstruct, nanjing 210093, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china.;yu, t (reprint author), nanjing univ, ecomat & renewable energy res ctr, natl lab solid state microstruct, nanjing 210093, peoples r china;yutao@nju.edu.cn
关键词	Thin-films Thin-films Water Oxidation Water Oxidation Electrodes Electrodes Decomposition Decomposition
URL	查看原文 ; 查看原文
WOS记录号	WOS:000248017300045 ; WOS:000248017300045
引用统计	被引频次：63[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33462
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Y. Chen,T. Yu,F. Gao,et al. Application of weak ferromagnetic BiFeO3 films as the photoelectrode material under visible-light irradiation, Application of weak ferromagnetic BiFeO3 films as the photoelectrode material under visible-light irradiation[J]. Applied Physics Letters, Applied Physics Letters,2007, 2007,91, 91(2).
APA	X. Y. Chen.,T. Yu.,F. Gao.,H. T. Zhang.,L. F. Liu.,...&J. M. Liu.(2007).Application of weak ferromagnetic BiFeO3 films as the photoelectrode material under visible-light irradiation.Applied Physics Letters,91(2).
MLA	X. Y. Chen,et al."Application of weak ferromagnetic BiFeO3 films as the photoelectrode material under visible-light irradiation".Applied Physics Letters 91.2(2007).