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Improving the Performances of Dye-Sensitized Solar Cell by the Optimal $TiO_2$ Photoelectrode Thickness and Light-Scattering Enhancement  

Niu, Zeng Yuan (Department of Mechatronics, Kumoh National Institute of Technology)
Kweon, Hyun Kyu (Department of Mechatronics, Kumoh National Institute of Technology)
Park, Chang Yong (Department of Mechatronics, Kumoh National Institute of Technology)
Publication Information
Journal of the Semiconductor & Display Technology / v.13, no.2, 2014 , pp. 37-44 More about this Journal
Abstract
In this study, the performance of dye-sensitized solar cells with different thickness of the photelectrode film was simulated by using the electron-diffusion differential model. Through this simulation, the relationships between the thickness of the photoelectrode film and the performances (open-circuit voltage, short-circuit current density, and overall photoelectric-conversion efficiency) of cells were understood and the performances with different thickness of the photoelectrede film were also examined. For considering the refractive index in the liquid electrolyte and exploring the scattering effect of titanium dioxide particles with different sizes using the Mie light-scattering theory, the highest scattering effect of each particles was found out and the optimal size of the titanium dioxide particle was determined for light scattering in the photoelectrode film of dye-sensitized solar cell. Through experiment, the mixed titanium dioxide cell was better than the single titanium dioxide cell and generated a higher overall conversion efficiency because the optimal titanium dioxide particles in the phoelectrode film as light scattering.
Keywords
Electron-Diffusion Differential Model; Incident photo-to-electron conversion efficiency; Electron-diffusion length; Mie light-scattering theory;
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Times Cited By KSCI : 1  (Citation Analysis)
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