Controllable synthesis method of novel disc-shaped zinc oxide doped with transition metals or rare earth metals

The invention discloses a controllable synthesis method of novel disc-shaped zinc oxide doped with transition metals or rare earth metals. The method comprises the following step that disc-shaped zinc oxide doped with the different metals is synthesized by taking zinc acetate and hexamethylene tetramine as raw materials and adding different metal salts at the temperature of 85 DEG C to 95 DEG C. The particle size of the disc-shaped zinc oxide doped with the metals ranges from 0.5 micrometer to 6.5 micrometers, the thickness of the disc-shaped zinc oxide ranges from 0.2 micrometer to 3.75 micrometers and is controllably adjusted, and in a final solution, the molar concentration ratio of the doped metals to zinc acetate is 0.5% to 4.3%. According to the method, the size and thickness of disc-shaped zinc oxide are adjusted and controlled while metal doping is achieved, and then the forbidden bandwidth, the light absorption property and the light emitting property of zinc oxide and the variety and quantity of oxy