▎ 摘　　要

NOVELTY - A graphene window substrate is prepared by mixing anhydrous ethyl alcohol with diluted hydrochloric acid solution to obtain solution, hydrolyzing and drying the solution to obtain powder, immersing a silicon carbide slice in deionized water, supplying 500W to a microwave machine to perform reaction, placing an aluminum coated silicon carbide slice in a sediment system, cooling the silicon carbide slice, injecting hydrogen ion on a surface of the silicon carbide slice and cleaning the silicon carbide slice to obtain graphene mobile phone substrate window. USE - Graphene window substrate for use in a mobile phone. DETAILED DESCRIPTION - A graphene window substrate is prepared by choosing oxidation graphene, mixing anhydrous ethyl alcohol with diluted hydrochloric acid solution with 1:2 ratio to obtain solution, stirring and hydrolyzing the solution for 20 minutes, filtrating the hydrolyzed solution by performing suction filtrating, placing the filtrated solution in a vacuum drying box, drying and grinding the filtrated solution at 240 degrees C to obtain powder, dissolving the powder in deionized water, immersing a silicon carbide slice in the deionized water, placing the silicon carbide slice immersed deionized water in a 500W microwave machine with 0.1GPa gas pressure and 110 degrees C temperature to perform reaction for 2 hours, supplying 500W to microwave machine to perform reaction for 20 minutes, coating the silicon carbide slice with 1 micron aluminum, placing the aluminum coated silicon carbide slice in a sediment system, introducing acetylene and hydrogen in the sediment system for protecting passing of argon gas into the sediment system, performing reaction for 2 hours at 500 degrees C, removing the silicon carbide slice, cooling the silicon carbide slice at room temperature, injecting hydrogen ion on a surface of the silicon carbide slice to perform polishing and cleaning the silicon carbide slice by the deionized water to obtain a graphene mobile phone substrate window.