MICROSTRUCTURAL STUDY OF AS GROWN AND 650 degrees C ANNEALED ZnO NANORODS: X-RAY PEAK PROFILE ANALYSIS

Zinc oxide nanorods were synthesized by hydrothermal method at 95 degrees C. The X-ray diffraction analysis revealed that nanorods are crystalline in nature having wurtzite phase, Transmission Electron Microscopy result indicate that the grain size of the sample is about 102 nm. We have studied the development of crystallite size by using X-ray peak profile analysis. Lattice strain and crystallite size were calculated by Scherer's formula and various models of Williamson-Hall analysis. Uniform deformation model, uniform deformation stress model and uniform deformation energy density model with Williamson-Hall method were used to calculate all other physical parameters such as stress, strain and energy density values. The results showed that the estimated crystallite size from Williamson-Hall analysis by using uniform deformation model is highly inter-correlated with the particle size estimated from TEM analysis. In this paper, the X-ray diffraction and TEM results show not so much of deviation between crystallite size and particle size.