Enhanced Efficiency of Dye-Sensitized Solar Cell by High Surface Area Anatase-TiO2-Modified P25 Paste
How to improve the conversion efficiency and the stability of dye-sensitized solar cells (DSSCs) are two major problems. Furthermore, reduction of the manufacturing cost of DSSCs and large-scale manufacture are also very important factors. As a raw material, commercial P25 would be used for large-s...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
2013-01-01
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| Series: | Journal of Nanomaterials |
| Online Access: | http://dx.doi.org/10.1155/2013/760685 |
| Summary: | How to improve the conversion efficiency and the stability of
dye-sensitized solar cells (DSSCs) are two major problems.
Furthermore, reduction of the manufacturing cost of DSSCs and
large-scale manufacture are also very important factors. As a raw
material, commercial P25 would be used for large-scale manufacture
of TiO2 paste with simple preparation procedure. However, there
are several drawbacks for P25 such as the low surface area of P25
powder and the poor connectivity among particles in film using
tradition P25 paste without modification. In this paper, we
introduced a simple modified method by adding high surface area
anatase TiO2 into pure P25 paste. The photoelectric conversion
performances of DSSCs based on these photo-electrodes were tested.
The results show that the open-circuit voltage, the fill factor
and the energy conversion efficiency of the modified electrode
were increased. It is found that the modified P25 films have fast
electron transportation and a slow charge recombination. We
conclude that through adding the anatase TiO2 nanoparticles to the
P25 paste with high surface area, it can not only improve the
particles connectivity among inside the films, but also enhance
the efficiency of DSSCs. |
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| ISSN: | 1687-4110 1687-4129 |