“…1,2 In optoelectronics, ZnO is a promising material for the fabrication of blue light emitting diodes. 3,4 It is also the best substrate available for the epitaxy of GaN layers. 5 It is used in chemistry and catalysis for its surface properties and its chemical reactivity (synthesis of methanol, 6,7 stabilisation of polyethylene, 8 pollutant degradation, 9 .…”