Investigation of microstructure, electrical and decorative properties of WO_3 film by PVD magnetron sputtering with Ar/O_2

摘要

In this experiment, we use the opaque mirror stainless steel as the substrate to investigate decorative color variations after insertion of the Na~+ ion in the film and prescribe the combination coating film with reversible and excellent coating characteristics. In manufacturing of the coating film, reactive gas pass through the metal tungsten target and form the amorphous tungsten oxide thin film on stainless steel and the various colors, such as green and pink color, on the mirror stainless by adjusting the process parameters. The coating film device then immerse in sodium bicarbonate aqueous solution and induce cyclic potential of -2V~+2V. Base color of stainless steel produce the color change reaction by inserting Na~+ in the film. Experimental observations show that the green base color will transform to pink then blue and the pink base color transform to green then blue.