标题：Comparison Study of Metal Oxides (CeO<sub>2</sub>, CuO, SnO<sub>2</sub>, CdO, ZnO and TiO<sub>2</sub>) Decked Few Layered Graphene Nanocomposites for Dye-Sensitized Solar Cells
摘要：Recent research is focused on few layered graphene (FLG) with various metal oxides (MOs) as (MOs; CeO<sub>2</sub>, CuO, SnO<sub>2</sub>, CdO, ZnO, and TiO<sub>2</sub>) nanocomposite materials are alternatives to critically important in the fabrication of solar cell devices. In this work, FLG with different MOs nanocomposites were prepared by a novel eco-friendly viable ultrasonic assisted route (UAR). The prepared FLG/MO nanocomposites were performed with various characterization techniques. The crystal and phase compositional were carried out through using X-ray diffraction technique. Surface morphological studies by field emission scanning electron microscope (FE-SEM) and high-resolution transmission electron microscopy (HR-TEM). Spectroscopic methods were done by Raman and UV-Vis Diffuse reflectance spectra (UV-DRS). The prepared FLG/MO nanocomposites materials are used as a photoanode, in the fabrication of dye sensitized solar cells (DSSCs). Compared to TiO<sub>2</sub> nanoparticles (NPs) and other FLG/MO nanocomposites, FLG/TiO<sub>2</sub> nanocomposites exhibit superior photovoltaic properties. The obtained results indicate that FLG/TiO<sub>2</sub> nanocomposites significantly improves the power conversion efficiency (PCE) of DSSCs. The photovoltaic analyses were performed in a solar simulator with an air mass (AM) of 1.5 G, power density of 100 m W/m<sup>2</sup>, and current density-voltage (J-V) was investigated using N719 dye.
