THE SIZE EFFECT OF THE VISIBLE ABSORPTANCE OF THE ULTRATHIN ALUMINUM FILM

The visible absorptance of the ultrathin aluminum film has been measured by WFZ900-D4 UV/VIS spectrophotometer. The result indicates that the absorptance is a function of film thickness and has obvious size effect. With decreasing the film thickness, the maximum absorptance appears. Comparing to electric conductivity characteristic of the film,unique structure feature leads to the size effect of the absorptance of the ultrathin aluminum film.