Oriented Ti doped hematite thin film as active photoanodes synthesized by facile APCVD

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	Oriented Ti doped hematite thin film as active photoanodes synthesized by facile APCVD
	Zhang, P ; Kleiman-Shwarsctein, A ; Hu, YS ; Lefton, J ; Sharma, S ; Forman, AJ ; McFarland, E
刊名	ENERGY & ENVIRONMENTAL SCIENCE
	2011
卷号	4 期号:3 页码:1020
关键词	HYDROGEN-PRODUCTION ALPHA-FE2O3 ELECTRODES LIGHT IRRADIATION WATER OXIDATION P-TYPE FE2O3 PHOTORESPONSE ENHANCEMENT PERFORMANCE DEPOSITION
ISSN号	1754-5692
通讯作者	Zhang, P (reprint author), Univ Calif Santa Barbara, Dept Chem Engn, Santa Barbara, CA 93106 USA.
中文摘要	To improve the optoelectronic properties of iron oxide as a photoelectrode, hematite (alpha-Fe2O3) thin films were doped with titanium using atmospheric pressure chemical vapor deposition (APCVD) for synthesis. The films were prepared by pyrolysis of Fe(CO)(5) and TiCl4 precursors on fluorine-doped tin oxide (FTO) substrates and found to have a polycrystalline morphology with faceted particulates similar to 20 to 50 nm in size with a preferred crystallographic growth along the [110] direction. The performance of the photoanodes was measured as a function of titanium concentration. A maximum efficiency was observed at similar to 0.8 atom% Ti in hematite. The Incident Photon-to-current Conversion Efficiency (IPCE) to hydrogen was measured in alkaline electrolyte. Under an applied bias of 0.6 V vs. Ag/AgCl at 400 nm the IPCE for water splitting in alkaline solution was found to be 27.2%, the highest efficiency reported for Ti doped hematite photoanodes. The IPCEs of the photoanode thin films at lower applied bias were further increased by calcination at 500 degrees C and by use of glucose as an anolyte.
收录类别	SCI
资助信息	Department of Energy [DEFG36-05GO15040, DEFG36-03GO13062]; National Science Foundation [DMR05-20415]
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/50470]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zhang, P,Kleiman-Shwarsctein, A,Hu, YS,et al. Oriented Ti doped hematite thin film as active photoanodes synthesized by facile APCVD[J]. ENERGY & ENVIRONMENTAL SCIENCE,2011,4(3):1020.
APA	Zhang, P.,Kleiman-Shwarsctein, A.,Hu, YS.,Lefton, J.,Sharma, S.,...&McFarland, E.(2011).Oriented Ti doped hematite thin film as active photoanodes synthesized by facile APCVD.ENERGY & ENVIRONMENTAL SCIENCE,4(3),1020.
MLA	Zhang, P,et al."Oriented Ti doped hematite thin film as active photoanodes synthesized by facile APCVD".ENERGY & ENVIRONMENTAL SCIENCE 4.3(2011):1020.