Aqueous Synthesis of Ru Doped Hematite Nanostructures: A Morphological, Structural, Optical, and Magnetic Study

Figure 4

The SEM images of the undoped and Ru doped α-Fe₂O₃ samples grown on FTO glass substrate for 24 h at 95°C. The amount of RuCl₃·xH₂O precursor is indicated on each image.