Role of dysprosium doping concentration on structural deformation of zinc oxide nanoparticles

A small change in crystal structural leads towards a significant improvement in absorption, emission, magnetic nature and electrical properties of ZnO. The present work focuses on studying of Dy+3 doping on structural parameters and absorption analysis of ZnO nanoparticles. Different concentrations of Dy (0–3%) doped ZnO nanoparticles have been synthesized by co-precipitation method without any impurity phase to analyze the role of dysprosium doping concentration on HCP structure of ZnO nanoparticles. We observed variation in structural parameters indicating small deformation due to Dy doping. Absorption spectra specify a slight variation in optical bandgap caused by doping Dy+3. The FTIR peak at 600 cm−1 confirms the ZnO HCP structure. The Dy doping results a wave number shift towards the higher side. The change in wave number is due to atomic mass difference. The study indicates a correlation between variation in absorption spectra and structural deformation. •Dy(0-3%) doped ZnO prepared by coprecipitation without any impurity phase.•Rietveld refinement indicate slight deformation in crystal structure.•UV region absorption increases due to increase in Dy induced defects.•FTIR analysis confirms the substitution of Dy by wavenumber variation.