dear Abdelmajid, what kinds of Nanofilms you want to synthesis? you need to specifies first then you can choose from various synthesis methods from physical and chemicals synthesis techniques. the physical methods are Evaporation; thermal, MBE, E-beam and Lesser) and Sputter deposition; Magnetron, DC, RF. also under chemicals synthesis techniques sol-gel, plating, and CVD..... therefore as you see here we have a lots of way to synthesis nanofilms. enjoy by Deeping your knowledge on this area and you can synthesis what you want. good luck!