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Controlling the haze ratio with a light condensable layer
on working electrodes for dye-sensitized solar cells |
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Takafumi Yamamoto, Kenji Ohashi and Masayuki Okuya |
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Abstract
In dye-sensitized solar cells, the incident light passes through a glass substrate, FTO transparent conducting layer, and then a dye-adsorbed TiO2 layer. In this process, however, some amount of the light is reflected and/or scattered to be out of the electrode before being absorbed by a dye. In this study, we deposited a light condensable SnO2 or ZrO2 layer on the back of the working electrode to increase the haze ratio of the incident light. By controlling the haze ratio, the conversion efficiency of the cell was effectively enhanced as high as 7.6%.
Trans. Mat. Res. Soc. Jpn., Vol.35, pp.409-412 (2010). |