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Studies on the Effects of Crystallite Sizes and Scattering Layers on the Conversion Efficiency of Dye-Sensitized Solar Cell

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We have carried out the characterization of dye-sensitized solar cell (DSSC) using various techniques including current-voltage characteristic measurements, scanning electron microscopy (SEM), atomic force microscopy (AFM), UV-visible spectrophotometry, energy dispersive X-ray (EDX) spectroscopy and X-ray Diffraction (XRD), etc. The result we obtained from our work has clearly shown that dye adsorption capability of the DSSC is affected by the film thickness. The EDX spectroscopy verified that our samples are generally of good quality without significant inclusion of foreign elements. The XRD pattern demonstrated that all the TiO2 active layers are consisting of anatase phase. Our results also showed that smaller crystallite sizes of the TiO2 and inclusion of a scattering layer produce better efficiency for the DSSC.
Cite this paper
Liang, M. , Fong, Y. , Khaw, C. , Liu, C. and Chin, S. (2014) Studies on the Effects of Crystallite Sizes and Scattering Layers on the Conversion Efficiency of Dye-Sensitized Solar Cell. Journal of Power and Energy Engineering, 2, 18-24. doi: 10.4236/jpee.2014.212004. 
 

[1] Sokolsky, M. and Cirak, J. (2010) Dye-Sensitized Solar Cells: Materials and Processes. Acta Electrotechnica et Infor-matica, 10, 78-81.
[2] Wang, Z., Tang, Q., He, B., Chen, X., Chen, H. and Yu, L. (2014) Titanium Dioxide/Calcium Fluoride Nanocrystallite for Efficient Dye-Sensitized Solar Cell. A Strategy of Enhancing Light Harvest. Journal of Power Sources, in Press.
[3] Gr?tzel, M. (2001) Photoelectrochemical Cells. Nature, 414, 338-344. http://dx.doi.org/10.1038/35104607
[4] Hagfeldt, A. and Gratzel, M. (2000) Molecular Photovoltaics. Accounts of Chemical Research, 33, 269-277. http://dx.doi.org/10.1021/ar980112j
[5] Wang, Q., et al. (2006) Characteristics of High Efficiency Dye-Sensitized Solar Cells. Journal of Physical Chemistry B, 110, 25210-25221. http://dx.doi.org/10.1021/jp064256o
[6] Benko, G., Skarman, B., Wallenberg, R., Hagfeldt, A., Sundstrom V. and Yartsev, A.P. Particle Size and Crystallinity Dependent Electron Injection in Fluorescein 27-Sensitized TiO2 Films. Journal of Physical Chemistry B, 1370-1375.                                  eww141219lx
[7] Ito, S., Kitamura, T., Wada, Y. and Yanagida, S. (2003) Facile Fabrication of Mesoporous TiO2 Electrodes for Dye Solar Cells: Chemical Modification and Repetitive Coating. Solar Energy Materials and Solar Cells, 76, 3-13. http://dx.doi.org/10.1016/S0927-0248(02)00209-X
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