Abstract
Here we report facile synthesis of Nano sized nickel oxide (NiO) powder via wet chemical method. The structural and optical properties have been investigated via XRD, FTIR, UV-Vis, SEM and EDS as a function of temperature (200 degrees C-700 degrees C), which peculiarly dictates the phase transformation and densification of the NiO nanoparticles. A theoretical evaluation of average particle size (APS) and the specific surface area (SSA) of the NiO nanoparticles was carried out based on the XRD data. The data confirms the purity of the crystalline index particularly beyond 400 degrees C.The SEM images identify cubic phase crystalline structures with grain boundaries clearly diffusing into each other as a result of agglomeration beyond 400 degrees C. Our proposed one-step method of synthesis promises high electrical, thermal and optical quality NiO nanoparticles for a wide range of optoelectronic applications. (C) 2017 Elsevier GmbH. All rights reserved.