Optimization of ZnO sheets dimension in terms of ductility, micro-indentation, mechanical resistance, Amlouk-Boubaker optothermal expansivity and crystallites size

ZnO sheets with different thicknesses have been prepared using a simple spray pyrolysis technique. Parallel to classical characterization techniques like common XRD and AFM, a critical thickness has been proposed on the bases of micro-indentation related hardness, mechanical ductility, optothermal expansivity and crystallite sizes measurements.