Structural and Optical Properties of Zn_1‐xMg_xO Prepared by Calcination of ZnO + Mg(OH)₂ after Hydro Micro Mechanical Activation

Abstract

Zn 1-x Mg x O microcrystals are produced in the 0.15 ࣘ x ࣘ 1 composition range by calcination of ZnO + Mg(OH) 2 after hydro micro mechanical activation according to the patent WO2018065735A1. The structural properties of the samples have revealed the cohabitation of wurtzite and rock-salt phases for x values ranging from 0.15 up to 0.6 with a clear increase of the proportion of cubic phase with x. A single cubic phase is observed in the range 0.66 ࣘ x < 1. From the purity of these samples produced at very low cost, it is expected that they will be used as precursors for growth of advanced light emitters integrated into an already existing process as they exhibit exceptionally efficient (and robust with T) light emission in the ultraviolet region.