Abstract

In this paper, the commercial monodisperse TiO2 nanoparticles with the size of 8–10 nm were successfully applied to the photoelectrode for dye-sensitized solar cells (DSCs) and the influence of the thickness of the TiO2 thin films on the photovoltaic performance of the DSCs was investigated. The result revealed that the DSCs with the TiO2 thin film thickness of 3.6, 8.0, 11.6 and 20.0 μm gave the photoelectric conversion efficiency of 3.67%, 5.92%, 6.71% and 7.03%, respectively, under the illumination of simulated AM 1.5 sunlight (100 mW cm−2).

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