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Investigators at Louisiana State University Describe Findings in Nanotubes

February 14, 2014



By a News Reporter-Staff News Editor at Energy Weekly News -- Researchers detail new data in Nanotubes. According to news reporting originating in Baton Rouge, Louisiana, by VerticalNews journalists, research stated, "In the present work, electrophoretic deposition (EPD) is used to deposit reduced graphene oxide (RGO) nanosheets onto a TiO2 nanotube array for application as photoelectrode in dye-sensitized solar cells (DSSCs). The as-deposited RGO nanosheets are very uniform and can be obtained with controllable thickness."

The news reporters obtained a quote from the research from Louisiana State University, "Due to the enhanced electronic conductivity caused by RGO, the short-circuit current of DSSCs based on RGO-modified TiO2 nanotube arrays is much higher than that of DSSCs based on unmodified TiO2 nanotube arrays. In addition, the short-circuit current (1.9,) increases with longer EPD time for RGO deposition but decreases with increased EPD time later; a peak value of 8.87 mA cm(-2) is reached forfs, at an EPD time of 30s. Therefore, DSSC based on TiO2 nanotubes (6.8 pm long) modified using EPD time 30 s delivers the highest energy conversion efficiency of 4.10%, while DSSC consisting of bare nanotubes exhibits efficiency of 2.97% and short-circuit current of 6.24 mA cm-2, which represents a 38.0% enhancement of energy conversion efficiency in DSSC consisting of TiO2 nanotubes modified with RGO compared to that of DSSC based on bare nanotubes."

According to the news reporters, the research concluded: "Moreover, RGO-deposition on longer bamboo-type TiO2 nanotube arrays (16.8 [km long) can further increase the energy conversion efficiencies to 6.01% by utilizing higher surface area of bamboo-type nanotubes for dye loading."

For more information on this research see: Electrophoretic deposition of reduced graphene oxide nanosheets on TiO2 nanotube arrays for dye-sensitized solar cells. Electrochimica Acta, 2013;111():216-222. Electrochimica Acta can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England.

Our news correspondents report that additional information may be obtained by contacting X.N. Luan, Louisiana State University, Dept. of Chem Engn, Baton Rouge, LA 70803, United States. Additional authors for this research include L.N. Chen, J.D. Zhang, G.Y. Qu, J.C. Flake and Y. Wang.

Keywords for this news article include: Louisiana, Oil & Gas, Nanosheets, Baton Rouge, United States, Nanotechnology, Energy Conversion, Emerging Technologies, North and Central America

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Source: Energy Weekly News


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