Preparation and properties of low-cost graphene counter electrodes for dye-sensitized solar cells

Qishuang Wu; Yue Shen; Qiandi Wang; Feng Gu; Meng Cao; Linjun Wang

doi:10.1117/12.2053639

16 December 2013 Preparation and properties of low-cost graphene counter electrodes for dye-sensitized solar cells

Qishuang Wu, Yue Shen, Qiandi Wang, Feng Gu, Meng Cao, Linjun Wang

Proceedings Volume 9068, Eighth International Conference on Thin Film Physics and Applications; 90681T (2013) https://doi.org/10.1117/12.2053639
Event: Eighth International Conference on Thin Film Physics and Applications (TFPA13), 2013, Shanghai, China

Abstract

With the advantages of excellent electrical properties, high catalytic activity and low-cost preparation, Graphene is one of the most expected carbon materials to replace the expensive Pt as counter electrodes for dye-sensitized solar cells (DSSCs). In this paper, graphene counter electrodes were obtained by simple doctor-blade coating method on fluorine tin oxides (FTOs). The samples were investigated by X-ray diffraction (XRD), Raman spectroscopy and scanning electron microscope (SEM). Then the low-cost graphene electrodes were applied in typical sandwich-type DSSCs with TiO₂ or ZnO as photoanodes, and their photoelectric conversion efficiency (η) were about 4.34% and 2.28%, respectively, which were a little lower than those of Pt electrodes but much higher than those of graphite electrodes. This law was consistent with the test results of electrochemical impedance spectroscopy (EIS). Low-cost graphene electrodes can be applied in DSSCs by process optimization.

Citation Download Citation

Qishuang Wu, Yue Shen, Qiandi Wang, Feng Gu, Meng Cao, and Linjun Wang "Preparation and properties of low-cost graphene counter electrodes for dye-sensitized solar cells", Proc. SPIE 9068, Eighth International Conference on Thin Film Physics and Applications, 90681T (16 December 2013); https://doi.org/10.1117/12.2053639

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