I want to make 3D model. For ex. Hexagonal ZnO rods grown on a flat substrate, layer of spherical NPs etc. Can any one suggest me a software which would be good and easy to use.(Except photoshop)
You can try any of the 3D modelling CAD software like SolidWorks or CATIA or proE. They are very easy to learn and use and can be useful for your work.