Ru-Dye Grafted CuS and Reduced Graphene Oxide (CuS/rGO) Composite: An Efficient and Photo Tunable Electrode for Dye Sensitized Solar Cells
Autor: | P. SivaKarthik, K. K. Saravanan |
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Rok vydání: | 2019 |
Předmět: |
Photocurrent
Nanocomposite Materials science Open-circuit voltage Graphene Energy conversion efficiency Nanochemistry Nanoparticle 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Biochemistry 0104 chemical sciences law.invention Dye-sensitized solar cell Chemical engineering law General Materials Science 0210 nano-technology |
Zdroj: | Journal of Cluster Science. 31:401-407 |
ISSN: | 1572-8862 1040-7278 |
Popis: | The CuS@reduced graphene oxide (CuS/RGO) hybrid nanocomposite was synthesized by facile hydrothermal method and used as a photoelectrode material in photovoltaic applications. In the hydrothermal route, RGO is formed by the reduction of GO with simultaneous formation of CuS/RGO nanocomposites. The CuS/RGO nanocomposites was investigated using powder XRD, TEM, HR-TEM, Raman, XPS, DRS UV–Vis spectroscopy, Photoluminescence (PL) measurements. XRD and TEM results suggest that CuS crystalline with individual spherical like homogeneous nanoparticles sizes in the range of 45–35 nm, which is distributed throughout the RGO sheets. We further construct the flexible photoelectrodes by using CuS and RGO and studied the photovoltaic performance. Photovoltaic parameters, such as short-circuit photocurrent density, open circuit voltage, fill factor and conversion efficiency were found to be 16 mA/cm2, 0.71 V, 70.1% and 7.81% respectively, for CuS/RGO photoelectrode. The improved photo conversion efficiency of CuS/RGO is due to enhancing the electronic injection ability and reducing the photogenerated charge recombination. These photovoltaic results indicate a simple methodology for the low cost and effortless synthesis of an alternative CuS/RGO photoelectrode in high performance photovoltaic devices. |
Databáze: | OpenAIRE |
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