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题名: Structural Modification of TiO2 Nanorod Films with an Influence on the Photovoltaic Efficiency of a Dye-Sensitized Solar Cell (DSSC)
作者: Meng, Lijian1, 2;  Li, Can3;  dos Santos, M. P.4, 5
关键词: TiO2 ;  Nanorod ;  Sputtering ;  DSSC
刊名: JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
发表日期: 2013-07-01
DOI: 10.1007/s10904-013-9842-9
卷: 23, 期:4, 页:787-792
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Polymer Science
研究领域[WOS]: Polymer Science
英文摘要: TiO2 nanorod films have been deposited on ITO substrates by dc reactive magnetron sputtering technique. The structures of these nanorod films were modified by the variation of the oxygen pressure during the sputtering process. Although all these TiO2 nanorod films deposited at different oxygen pressures show an anatase structure, the orientation of the nanorod films varies with the oxygen pressure. Only a very weak (101) diffraction peak can be observed for the TiO2 nanorod film prepared at low oxygen pressure. However, as the oxygen pressure is increased, the (220) diffraction peak appears and the intensity of this diffraction peak is increased with the oxygen pressure. The results of the SEM show that these TiO2 nanorods are perpendicular to the ITO substrate. At low oxygen pressure, these sputtered TiO2 nanorods stick together and have a dense structure. As the oxygen pressure is increased, these sputtered TiO2 nanorods get separated gradually and have a porous structure. The optical transmittance of these TiO2 nanorod films has been measured and then fitted by OJL model. The porosities of the TiO2 nanorod films have been calculated. The TiO2 nanorod film prepared at high oxygen pressure shows a high porosity. The dye-sensitized solar cells (DSSCs) have been assembled using these TiO2 nanorod films prepared at different oxygen pressures as photoelectrode. The optimum performance was achieved for the DSSC using the TiO2 nanorod film with the highest (220) diffraction peak and the highest porosity.
关键词[WOS]: SPUTTER-DEPOSITION ;  ARRAYS ;  OXIDE ;  ELECTRODE
语种: 英语
WOS记录号: WOS:000320511700001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137510
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Inst Politecn Porto, Dept Fis, Inst Super Engn Porto, P-4200072 Oporto, Portugal
2.Univ Minho, Ctr Fis, P-4800058 Guimaraes, Portugal
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
4.Univ Nova Lisboa, Ctr Fis & Invest Tecnol, Fac Ciencias & Tecnol, P-2829516 Caparica, Portugal
5.Univ Evora, Escola Ciencias & Tecnol, P-7000671 Evora, Portugal

Recommended Citation:
Meng, Lijian,Li, Can,dos Santos, M. P.. Structural Modification of TiO2 Nanorod Films with an Influence on the Photovoltaic Efficiency of a Dye-Sensitized Solar Cell (DSSC)[J]. JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS,2013,23(4):787-792.
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