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Synthesis and Characterization of Reduced Graphene Oxide and Their Application in Dye-Sensitized Solar Cells

1
Center for Nanotechnology, Department of Natural Sciences, Coppin State University, 2500 W. North Ave., Baltimore, MD 21216, USA
2
Nanoscience Technology Center, Department of Physics, & Department of Electrical and Computer Engineering, University of Central Florida, 12424 Research Parkway, Orlando, FL 32826, USA
3
Centre for Defense Chemistry, Cranfield University, Shrivenham SN6 8LA, UK
4
Department of Chemistry, Oglethorpe University, Atlanta, GA 30319, USA
5
Department of Chemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia
*
Author to whom correspondence should be addressed.
ChemEngineering 2019, 3(1), 7; https://doi.org/10.3390/chemengineering3010007
Received: 5 October 2018 / Revised: 29 December 2018 / Accepted: 8 January 2019 / Published: 15 January 2019
(This article belongs to the Special Issue TiO2 Nanoparticles: Synthesis and Applications)
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Abstract

Reduced graphene oxide has certain unique qualities that make them versatile for a myriad of applications. Unlike graphene oxide, reduced graphene oxide is a conductive material and well suited for use in electrically conductive materials, such as solar cell devices. In this study, we report on the synthesis of graphene oxide as well as the fabrication and characterization of dye-sensitized solar cells with a photoanode which is an amalgam of reduced graphene oxide and titanium dioxide. The synthesized reduced graphene oxide and the corresponding photoanode were fully characterized using Ultraviolet-visible, Fourier transform infrared (FTIR), and Raman Spectrometry. The morphology of the sample was assessed using Atomic Force Microscopy, Field Emission Scanning Electron Microscopy, Transmission Electron Microscopy, and Energy Dispersive X-ray Spectroscopy. The photovoltaic characteristics were determined by photocurrent and photo-voltage measurements of the fabricated solar cells. The electrical impedances of both sets of devices were also evaluated. Overall, the solar to electric power efficiency of the device with reduced graphene oxide was observed to be higher (2.02%) than the device without the reduced graphene oxide (1.61%). View Full-Text
Keywords: titanium dioxide; Graphene Oxide (GO); Reduced Graphene Oxide (rGO); DSSC; FTIR; Raman; AFM; TEM titanium dioxide; Graphene Oxide (GO); Reduced Graphene Oxide (rGO); DSSC; FTIR; Raman; AFM; TEM
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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MDPI and ACS Style

Ghann, W.E.; Kang, H.; Uddin, J.; Chowdhury, F.A.; Khondaker, S.I.; Moniruzzaman, M.; Kabir, M.H.; Rahman, M.M. Synthesis and Characterization of Reduced Graphene Oxide and Their Application in Dye-Sensitized Solar Cells. ChemEngineering 2019, 3, 7.

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