Full text loading...
SEM image of polyhedral microparticles, which will be used as precursor to form dendritic nanostructures. (Inset) Enlarged view of one particle, showing its flat top face and stepped side faces.
(a) SEM image of the structure after annealing the microparticles at . (b) Magnified view of dendritic nanostructure on the particle surface. (c) A perspective view of one annealed particle showing that the dendritic branches lie in parallel planes.
XRD spectra of the precursors (bottom branch) and the annealed sample (upper branch). The open circles denote peaks corresponding to and the closed circles to .
(a) TEM images of a complex dendritic nanostructure. Inset at top left: corresponding electron diffraction pattern with  transmission direction. Inset at bottom right: a dendrite showing its main arm and branches. HRTEM (0001)-plane lattice images at (b) the joint region, and (c) tip of a branch. The inset is a fast Fourier transformation of the HRTEM image. The white arrows indicate the wire axes, which is along ( axes).
Room-temperature photoluminescence (solid line) of the dendritic nanowires recorded with a micro-PL system. Dashed lines: fitting result of the broad peak.
Article metrics loading...