Synthesis of vertically aligned CoS prismatic nanorods as counter electrodes for dye-sensitized solar cells
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Vertically aligned CoS prismatic nanorods were synthesized on transparent conductive fluorine-doped tin oxide (FTO) substrates by a two-step method. First, vertically aligned Co3O4 prismatic nanorod arrays were prepared by a rapid microwave irradiation method. Second, Co3O4 were converted to CoS nanorods by solution-based ion exchange reaction (IER). The dye-sensitized solar cell (DSSC) using CoS prismatic nanorods arrays as the counter electrode (CE) achieves a power conversion efficiency of 6.06%, which is comparable with the cells based on Pt-CE (6.45%).
We acknowledge the financial supports from the Science and Technology Program of Guangdong Province of China (No. 2016A010104020), the Training Plan of Outstanding Young Teachers of Universities in Guangdong Province (Grant No. YQ2015055) and Pearl River S&T Nova Program of Guangzhou (Grant No. 201610010116).
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