期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 551, 期 -, 页码 82-87出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2012.09.113
关键词
TiO2 nanorod arrays; Seed layer; Morphology; Dye-sensitized solar cells; Photovoltaic performance
资金
- National Natural Science Foundation of China [11174071]
- Fund of international cooperation project of Wuhan City
- Fund of international cooperation project of Hubei Province [201070934339, 2010BFA010]
- Fund of morning Program [200950431161]
Rutile TiO2 nanorod arrays were grown on TiO2 seed layer coated fluorine doped tin oxide (FTO) substrate by a hydrothermal method. The effects of the thin TiO2 seed layer on the morphology of nanorod arrays, as well as the photovoltaic performance in dye-sensitized solar cells (DSSCs) were analyzed. The introduction of the TiO2 seed layer was found to significantly increase the density and vertical orientation of the nanorod arrays, which lead to the improvement of dye absorption and electron transport. By optimized the TiCl4 solution concentration, a power conversion efficiency of 2.55% can be achieved in a DSSC fabricated by TiO2 nanorod arrays grown on seeded-FTO substrate using 0.15 M TiCl4 solution, which is 126% higher than the DSSC fabricated by nanorod arrays grown on bare FTO substrate (1.13%). (C) 2012 Elsevier B. V. All rights reserved.
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