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Dr. Eman Mohamed Abd-Allah Abd El-Fattah :: Publications:

Title:
Sonochemical method for synthesizing Co3O4/graphene nanocomposites for use as counter electrode in dye-sensitized solar Cells
Authors: E. M. Kamar; S. M. Reda
Year: 2016
Keywords: Not Available
Journal: Applied Physics A
Volume: 122
Issue: Not Available
Pages: 688
Publisher: springer
Local/International: International
Paper Link: Not Available
Full paper Not Available
Supplementary materials Not Available
Abstract:

Co3O4/graphene nanocomposites were synthesized via sonochemical method, and its application as a counter electrode (CE) for dye-sensitized solar cell (DSSC) was demonstrated. The prepared Co3O4/graphene nanocomposites were characterized by X-ray diffraction, scanning electron microscopy, and UV–Vis absorption spectroscopy. The results of SEM showed that Co3O4 nanoparticles deposited on the graphene sheets as spacers to keep the neighboring sheets separated. The Co3O4 have diameters ranging from 16 to 43 nm. The influence of the Co3O4 content on the photovoltaic performance of dyesensitized solar cell was investigated. It was found that the performances of Co3O4/graphene composites are better than that of graphene-based DSSCs. The Co3O4/graphene composite CE with 80 % Co3O4 content exhibits the best conversion efficiency (PCE) of 2.1 %.

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