Calculating the Nanometer Diameters of The Grains Zno: SnO2 Composite Depending On The SEM Image Analysis

Abstract

In our research, were prepared ZnO: SnO2 composite thin films from compounds mixed according to proportions volumetric (20, 40 ,60 and 80) % specific proportions, and then we obtained microscopic images of them using the scanning electronic microscope(SEM), scanning with Nano and micro diameter .The images and scaled and their measurements worked filter from impurities and obstacles to obtain the largest possible information about the surface of the thin film and distribution the numbers and areas of the thin film grains according to the most accurate measurements, then used thresholding for images to isolate the original compounds of the composite thin film and know their numbers, areas, sizes and all information related to the compounds that make up the film. From the data and all the information we concluded that the number of grains in the Nano diameter is greater than the micro diameter but the areas and sizes in micro measurement is greater than Nano measurements, as well as the distribution of the nano range diameter greater than the distribution of the micro range diameter.