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Proceedings Paper

Preparation and properties of low-cost graphene counter electrodes for dye-sensitized solar cells
Author(s): Qishuang Wu; Yue Shen; Qiandi Wang; Feng Gu; Meng Cao; Linjun Wang
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Paper 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.

Paper Details

Date Published: 16 December 2013
PDF: 6 pages
Proc. SPIE 9068, Eighth International Conference on Thin Film Physics and Applications, 90681T (16 December 2013); doi: 10.1117/12.2053639
Show Author Affiliations
Qishuang Wu, Shanghai Univ. (China)
Yue Shen, Shanghai Univ. (China)
Qiandi Wang, Shanghai Univ. (China)
Feng Gu, Shanghai Univ. (China)
Meng Cao, Shanghai Univ. (China)
Linjun Wang, Shanghai Univ. (China)

Published in SPIE Proceedings Vol. 9068:
Eighth International Conference on Thin Film Physics and Applications
Junhao Chu; Chunrui Wang, Editor(s)

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