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Nanoparticle Layers Transformed from Ordered TiO2 Nanotube Arrays and Dye-Sensitized Solar Cells

Published online by Cambridge University Press:  31 January 2011

Yahya Alivov ,
Xuan Pan ,
Mahesh Pandikunta ,
Vladimir Kuryatkov ,
Sergey A Nikishin ,
Mark Holtz  and
Zhaoyang Fan
Yahya Alivov
Affiliation:
[email protected], Texas Tech University, Nano Tech Center, 1012 Boston Ave, Lubbock, Texas, 79409, United States
Xuan Pan
Affiliation:
[email protected], Texas Tech University, Nano Tech Center, 1012 Boston Ave, Lubbock, Texas, 79409, United States
Mahesh Pandikunta
Affiliation:
[email protected], United States
Vladimir Kuryatkov
Affiliation:
[email protected], Texas Tech University, Nano Tech Center, Eng and Tech Lab/10th and Akron, Lubbock, Texas, 79409, United States
Sergey A Nikishin
Affiliation:
[email protected], Texas Tech University, Nano Tech Center, Lubbock, Texas, 79409, United States
Mark Holtz
Affiliation:
[email protected], Texas Tech University, Physics, Box 41051, U.S.A., Texas, 79409-1051, United States
Zhaoyang Fan
Affiliation:
[email protected], Texas Tech University, Lubbock, Texas, United States
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Abstract

Transformation of titanium dioxide (TiO2) nanotubes (NTs) to truncated bipyramidal shape nanoparticles (NPs) with a large fraction of photo-catalytically active {001} facet surface was observed after thermal annealing TiO2 ordered nanotube arrays in fluorine ambient. Size of the formed nanoparticles depended on fluorine concentration and can be controlled from 20 nm to 350 nm. The crystal and optical properties of nanoparticle layers are superior to those of nanotube arrays, which are also annealed but without geometrical transformation. Using nanoparticle layers formed by this method we have fabricated dye-sensitized solar cells (DSSCs) with different size NPs in the range 35-350 nm. The dependence of solar cell performance on NP size is discussed.

Keywords

nanostructureoxidephotovoltaic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1211: Symposium R – Advanced Nanostructured Solar Cells , 2009 , 1211-R08-33
Copyright
Copyright © Materials Research Society 2010

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References

1 Grätzel, M., Nature 414, 338 (2001).Google Scholar
2 Gong, D. Grimes, C.A. Varghese, O.K. Hu, W. Singh, R.S. Chen, Z. Dickey, E.C. J. Mater. Res. 16, 3331 (2001).Google Scholar
3 Kobayashi, S. Hamasaki, N. Suzuki, M. Kimura, M. Shirai, H. Hanabusa, K. J. Am. Chem. Soc. 124, 6550 (2002).Google Scholar
4 Macak, J.M. Tsuchiya, H. Ghicov, A. Yasuda, K. Hahn, R. Bauer, S. Schmuki, P. Current Opinion in Solid State and Materials Science 11, 3 (2007).Google Scholar
5 Fujishima, A. Honda, M. Nature 238, 37 (1972).Google Scholar
6 Grätzel, M. Inorg. Chem. 44, 6841 (2005).Google Scholar
7 Alivov, Yahya and Fan, Z.Y. J. Phys. Chem. C, 113, 12954 (2009).Google Scholar
8 Alivov, Yahya, Pandikunta, Mahesh, Nikishin, Sergey, and Fan, Z. Y. Nanotechnology 20, 225602 (2009).Google Scholar
9 Gong, X. Q. & Selloni, A. J. Phys. Chem. B 109, 19560 (2005).Google Scholar
10 Barnard, A. S. and Curtiss, L. A. Nano Lett. 5, 1261 (2005).Google Scholar
11 Alivov, Yahya and Fan, Z.Y. Nanotechnology, 20, 405610 (2009).Google Scholar
12 Bisquert, Juan, Cahen, David, Hodes, Gary, Rühle, Sven, and Zaban, Arie, J. Phys. Chem. B , 108, 8106 (2004).Google Scholar