Abstract
Pure anatase TiO2 films have been made via hydration of titanium isopropoxide using a sol-gel technique, while mixed TiO2 films which contained both anatase and rutile TiO2 were made from commercial P25 powder. Quasi-solid state dye-sensitized solar cells were fabricated with these two kinds of mesoporous films and a comparison study was carried out. The result showed that the open-circuit photovoltages (V oc) for both kinds of cells were essentially the same, whereas the short-circuit photocurrents (I sc) of the anatase-based cells were about 33% higher than that of the P25-based cells. The highest photocurrent intensity of the anatase-based cell was 6.12 mA/cm2 and that of the P25-based cell was 4.60 mA/cm2. Under an illumination with the light intensity of 30 mW/cm2, the corresponding energy conversion efficiency was measured to be 7.07% and 6.89% for anatase-based cells and P25-based cells, respectively.
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Supported by the National Basic Research Program of China (Grant No. 2002CB613405) and the National Natural Science Foundation of China (Grant Nos. 50325310 and 50473009)
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Luo, F., Wang, L. & Qiu, Y. Comparison between P25 and anatase-based TiO2 quasi-solid state dye sensitized solar cells. Chin. Sci. Bull. 53, 954–957 (2008). https://doi.org/10.1007/s11434-008-0063-5
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DOI: https://doi.org/10.1007/s11434-008-0063-5