Effect of Nanograss and Annealing Temperature on TiO₂ Nanotubes Based Dye Sensitized Solar Cells

Abstract:

In TiO₂ nanoparticle based dye sensitized solar cells (DSSC), the electron injected from the dye has to cross multiple interparticle boundaries in random directions before reaching the electrode. For application in DSSCs, the directional pathway for electron transport through the nanotubes is known to reduce the recombination rate. In the present study, titania nanotubes with nanograss layer have been fabricated by anodization of titanium foil in fluoride containing organic electrolyte. Dye sensitized solar cells with photoanode made of titania nanotubes covered with nanograsswas found to have a higher efficiency than ones made with only titania nanotubes of the same length.This can be attributed to enhanced dye adsorption on nanotubes with nanograss. The efficiency of DSSC using titania nanotubes is also affected by the annealing conditions such as duration, temperature.

• Periodical: Materials Science Forum (Volume 771)
• Pages: 103-113
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.771.103
• Online since: October 2013
• Authors: Johns Naduvath, Santosh Shaw, Parag Bhargava, Sudhanshu Mallick
• Keywords: Anodization, Dye-Sensitized Solar Cell, Nanograss, Titanium Dioxide Nanotubes

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