Structural Properties of Mn Doped ZnO Nanocrystallites Using Wet Chemical Synthesis

Abstract

To get the required electrical, magnetic, structural and optical properties, materials are required to be doped with suitable impurities. The use of transition metals as a dopant in ZnO has been investigated to determine how they alter the various properties. Several research concerning the synthesis of TM-doped ZnO via various methods with the solubility limit of TM elements in ZnO has been reported. The distribution of the TMs into the ZnO matrix has been reported with divergent views. In this work, Mn doped ZnO nanoparticles has been synthesized by means of reasonable and ecologically friendly procedure by means of the liquid phase method with fewer conservational contaminants and no leftover products. The influence of the dopant on the structural properties of the produced ZnO nanocrystals was scrutinized using powder x-ray diffractogram (XRD). The Mn-doping concentration, x, was varied ( ) at temperatures of 180°C and 200 °C. Results of the lattice parameters, bond length, bond angles, crystallite size, strain, volume of unit cell, APF, number of unit cells, specific surface area and the density of the Mn-doped ZnO nanocrystal samples were be irregular in nature and not following a particular trend as the doping concentration increases. This variation in the values were due to the irregular values of the interplanar spacing and the observed variations in the shift of the peak angles as a result of the difference in ionic radii between Zn and Mn ions with Mn having multiple ionic radii since all the parameters are directly dependent on the value of the 2θ.