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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 34, Number 9
BKCSDE 34(9)
September 20, 2013 

Effect of Titanium Nanorods in the Photoelectrode on the Efficiency of Dye Sensitized Solar Cells
Md. Mahbubur Rahman, Hyun-Yong Kim, Young-Deok Jeon, In-Soo Jung, Kwang-Mo Noh*, Jae-Joon Lee*
Dye-sensitized solar cell, TiO2 nanorod, Composite photoelectrode, Scattering effect, Recombination
The effect of TiO2 nanorods (TNR) and nanoparticles (TNP) composite photoelectrodes and the role of TNR to enhance the energy conversion efficiency in dye-sensitized solar cells (DSSCs) was investigated. The 5% TNR content into the TNP photoelectrode significantly increased the short-circuit current density (Jsc) and the open-circuit potential (Voc) with the overall energy conversion efficiency enhancement of 13.6% compared to the pure TNP photoelectrode. From the photochemical and impedemetric analysis, the increased Jsc and Voc for the 5% TNR/TNP composite photoelectrode was attributed to the scattering effect of TNR, reduced electron diffusion path and the suppression of charge recombination between the composite photoelectrode and electrolyte or dye.
2765 - 2768
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