No abstract

No abstract

No abstract

Nanocrystalline ZnO nanoparticles having flower-like morphology have been synthesized through a soft chemical route and a new nucleation mechanism has been proposed. The crystalline phase and optical properties of the synthesized powder material were investigated using X-ray diffraction (XRD) and photoluminescence (PL) spectroscopy. The detailed microstructural study of the powder material has been carried out using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The flower-like structure of the powder material has been revealed when scanned under SEM. ZnO powder when examined under TEM showed bunches of flower-like structure consisting of very fine needle-, rod-and polyhedral shaped particles in nanometer size. XRD pattern showed well-resolved peaks of single phase ZnO having wurtzite structure. PL emission spectrum showed a strong bond excitation emission at 393nm with an excitation wavelength of 241nm.

No abstract