| dc.description.abstract | Cuprous oxide (Cu₂O) nanostructures have been synthesized via anodizing process in ethylene glycol electrolyte with different water content and concentration ofNH4F. The effects water content in ethylene glycol electrolyte and concentration of NH4F on the synthesis of Cu₂O nanostrucutres were studied. The water contents in the
EG electrolyte were varied from 5 vol.% to 25 vol.% with 0.15 M KOH and 0.10 M
NH4F meanwhile the concentration of NH4F in the EG electrolyte were increased from
0.05 M to 0.25 M with 0.15 M KOH and 5 vol.% of water. Moreover, the anodizing
behavior, microstructure, compositions and optical properties of these Cu₂O
nanostructures were studied by using FESEM, EDX, XRD, FTIR and PL. FESEM
results show that the Cu₂O nanostructures with different morphologies due to different
water content and concentration of NH4F added in the EG electrolyte. The lattice
planes of Cu₂O were attributed to (111), (200), (220) and (311). For FTIR, the
absorption peaks of Cu₂O appeared within 550-840 cm-1. Last but least, the band gap of
Cu₂O nanoparticles is 2.83 eV and 1.97 eV which obtained from PL characterization. | en_US |
