Preparation method for four-acicular nanometer zinc sulfide

A method for preparing four needle type nanometer zinc sulfide. The process is: the silicon (100) substrate is washed utilizing detergent used as deposit substrate; Zn powder, S powder and C powder are mixed in proportion. The mixed powders are put into a ceramic ship with the substrate in it. Said ceramic ship is then put into quartz tube, and they both are put in the center of a tubular heater; at the same time introducing high purity Ar for 2-3 hrs to remove the residual oxygen. And then the Ar flow rate is lowered to 90-110sccm, the temperature is increased quickly to 780-830deg.C, keeping the temperature for 40-60min, naturally cooling to room temperature under the Ar protective atmosphere, taking out of said ceramic ship, obtained is the four needle nanometer zinc sulfide in yellow and white colour on the substrate. Advantages; achievement of preparation of four needle type nanometer zinc sulfide, with simple process, lower reaction temperature, and also, high quality products, controllable, well repretitiveness.